2026 Complete LED Lamp Bead Model & Parameter Guide (8 Package Series + Selection Chart)
How many LED lamp bead models are there? By packaging technology they fall into eight major series: SMD (0201~5730), through-hole DIP (2~10mm), high-power Luxeon-style (1~10W), COB integrated light sources (3~500W), addressable RGB (including WS2812B with built-in IC), automotive CSP, special sources such as IR/UV, plus custom series from various manufacturers. Compiled by Hongcheng Optoelectronics (August 2026), this guide summarizes 150+ mainstream models across the eight series with key parameters — size, power, voltage, current, luminous flux — drawn from public industry datasheets and manufacturer documents. Use it as a quick-reference manual for engineering selection and procurement comparison.
Hongcheng product center: https://www.hc-led168.com/en/product-center-2
Key Parameter Glossary
Before reading the model tables, align on the meaning of ten core parameters to avoid selection pitfalls:
| Forward Voltage | Vf | Voltage drop across the LED during normal operation | V |
|---|---|---|---|
| Forward Current | If | Drive current for normal LED operation | mA/A |
| Luminous Flux | Φv/Lm | Total visible light energy emitted by the source | lm |
| Luminous Intensity | Iv | Brightness in a given direction | mcd/cd |
| Color Rendering Index | CRI/Ra | Ability of a source to render true object colors | Dimensionless (0-100) |
| Color Temperature | CCT | Temperature measure of the light color | K |
| Wavelength | λ | Peak wavelength of monochromatic light | nm |
| Beam Angle | 2θ1/2 | Angle at which intensity falls to half of maximum | ° |
| Thermal Resistance | Rθjc | Junction-to-case thermal resistance; lower means better cooling | ℃/W |
| Power | P | Rated power dissipation = Vf × If | W |
- 0805 SMD LED Indicator — 2.0×1.25mm standard SMD, 5~10mA, all colors in stock
- 3mm Round Through-Hole LED — classic DIP type, custom lead length/forming available
- 5mm Round RGB Full-Color LED — 4-pin common cathode/anode, full-color status indication
1. Low-Power SMD LED (0402/0603/0805/1206)
Low-power SMD beads are the workhorse packages for consumer electronics and indicator applications, at 0.02~0.1W. The 0603 (1608) is the most-used small package, while 0805 and 1206 are common in appliance indicators and backlighting.
| Model | Size (mm) | Power (W) | Vf (V) | If (mA) | Intensity (mcd) | Angle (°) | Common Colors | Typical Applications | Remarks |
|---|---|---|---|---|---|---|---|---|---|
| 0201 | 0.6×0.3 | 0.02 | 1.8~3.4 | 5 (max 10) | 120~480 | 120~160 | Red/Green/Blue/White | Ultra-compact electronics, wearables | Smallest package |
| 0402 | 1.0×0.5 | 0.03~0.06 | 1.8~3.4 | 5~10 (max 20) | 240~1200 | 120~160 | All colors | Phones, tablets, small indicators | Micro package |
| 0603 (1608) | 1.6×0.8 | 0.06~0.1 | 1.8~3.4 | 5~10 (max 20) | 550~2800 | 120~140 | All colors / RGB | Appliance indicators, backlight, keyboards | Most common small package |
| 0805 (2012) | 2.0×1.25 | 0.06~0.1 | 1.8~3.4 | 5~10 (max 20) | 1400~5600 | 120~140 | All colors | Power indicators, instruments, consumer electronics | Highly versatile |
| 1206 (3216) | 3.2×1.6 | 0.1~0.15 | 1.8~3.4 | 5~10 (max 20) | 2800~8400 | 120~140 | All colors | Industrial control, automotive electronics | Higher-power small package |
| 1204 (3210) | 3.2×1.0 | 0.06~0.1 | 1.8~3.4 | 20~30 | 1600~4800 | 120 | All colors | Edge backlight, key backlight | Side-emitting type |
| 1210 (3225) | 3.2×2.5 | 0.06~0.1 | 1.8~3.4 | 20~30 | 1600~6400 | 120 | All colors | Strips, backlight, indicators | Imperial 1210 = metric 3225, different from 3528 (3.5×2.8) |
| 3528 | 3.5×2.8 | 0.06~0.1 | 1.8~3.4 | 20~30 | 1600~8000 | 120 | All colors / RGB | LED strips, backlight, displays | Classic low power |
| 335 (4008) | 4.0×0.8 | 0.06~0.1 | 1.8~3.4 | 20~30 | 720~2400 | 120~160 | All colors | Side-emitting backlight, light guides | Side-emitting type |
| 020 side-emitting | 2.0×0.6 | 0.04~0.06 | 1.8~3.4 | 15~20 | 320~1600 | 120 | All colors | Ultra-thin backlight, phone keys | Ultra-thin side-emitting |
| 1608 full-color | 1.6×0.8 | 0.1 | R:2.0/G:3.2/B:3.2 | 20 (per color) | R:100/G:200/B:80 mcd | 120 | RGB full color | Full-color indicators, small displays | Hongcheng HC-S1608BHBGRTF |
Note: brightness of small indicator-type SMD beads is conventionally specified as luminous intensity (mcd); the table above is converted from luminous flux by beam angle (at 120°, 1 lm ≈ 320 mcd). Actual bins are subject to Hongcheng Optoelectronics test datasheets.
2. Mid/High-Power SMD LED (2835/3030/5050/5730)
Mid/high-power SMD covers 0.1~3W and is the mainstay of the lighting industry: 2835 sells the most, 5730/5630 serve high-efficacy tubes, and 5050 is the standard package for RGB strips.
| Model | Size (mm) | Power (W) | Vf (V) | If (mA) | Flux (lm) | CRI (Ra) | CCT (K) | Angle (°) | Typical Applications | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|
| 3014 | 3.0×1.4 | 0.1 | 2.8~3.4 | 30 | 10~14 | 70~80 | 2700~6500 | 120 | Panel lights, tubes, backlight | Side-emitting advantage |
| 4014 | 4.0×1.4 | 0.2 | 2.8~3.4 | 60 | 20~28 | 70~90 | 2700~6500 | 120 | Panel lights, ceiling lights, tubes | High efficacy |
| 2835 | 2.8×3.5 | 0.2 | 2.8~3.4 | 60 | 20~30 | 70~95 | 2700~6500 | 120 | Strips, bulbs, panel lights | Best-selling |
| 2835 | 2.8×3.5 | 0.5 | 2.8~3.4 | 150 | 55~70 | 70~95 | 2700~6500 | 120 | Ceiling lights, downlights, high-voltage strips | Mainstream mid-power |
| 2835 | 2.8×3.5 | 1.0 | 2.8~3.6 | 300 | 110~140 | 70~90 | 2700~6500 | 120 | Bulbs, spotlights, vehicle lights | High-power 2835 |
| 3030 | 3.0×3.0 | 0.5 | 2.8~3.4 | 150 | 55~75 | 70~95 | 2700~6500 | 120 | Panel lights, downlights, vehicle lights | EMC frame, high-temp resistant |
| 3030 | 3.0×3.0 | 1.0 | 2.8~3.6 | 300 | 110~150 | 70~90 | 2700~6500 | 120 | Spotlights, vehicle DRL | Mid-power mainstay |
| 3030 | 3.0×3.0 | 2.0 | 2.8~3.6 | 600 | 220~280 | 70~80 | 2700~6500 | 120 | Vehicle lights, floodlights | High-power 3030 |
| 3535 | 3.5×3.5 | 1.0 | 2.8~3.6 | 350 | 100~140 | 70~90 | 2700~6500 | 120 | Flashlights, vehicle lights, landscape lights | Ceramic substrate |
| 3535 | 3.5×3.5 | 3.0 | 2.8~3.8 | 1000 | 300~400 | 70~80 | 2700~6500 | 120 | High-power lighting, vehicle lights | High-power 3535 |
| 3535 | 3.5×3.5 | 5.0 | 2.8~4.0 | 1500 | 500~650 | 70~80 | 2700~6500 | 120 | Floodlights, street lights | Luxeon-compatible |
| 5050 | 5.0×5.0 | 0.6 (0.2 per RGB die) | R:2.0 / G:3.2 / B:3.2 | 20 (per color, 60 total for RGB) | 18~25 (single die) | 70~90 | 2700~6500 | 120 | Strips, backlight, RGB | Three-die package |
| 5050 | 5.0×5.0 | 0.5 | 2.8~3.4 | 150 | 50~65 | 70~90 | 2700~6500 | 120 | Strips, downlights | White 5050 |
| 5050 | 5.0×5.0 | 1.0 | 2.8~3.6 | 300 | 100~130 | 70~80 | 2700~6500 | 120 | Vehicle lights, landscape lights | High-power 5050 |
| 5630 | 5.6×3.0 | 0.5 | 2.8~3.4 | 150 | 50~65 | 70~80 | 2700~6500 | 120 | Strips, panel lights, downlights | Korean 5630 standard |
| 5730 | 5.7×3.0 | 0.5 | 2.8~3.4 | 150 | 55~70 | 70~95 | 2700~6500 | 120 | Ceiling lights, panel lights, strips | Domestic 5730 |
| 5730 | 5.7×3.0 | 1.0 | 2.8~3.6 | 300 | 110~140 | 70~90 | 2700~6500 | 120 | Bulbs, spotlights | High-power 5730 |
| 7070 | 7.0×7.0 | 3~5 | 2.8~3.8 | 1000~1500 | 300~600 | 70~80 | 2700~6500 | 120 | Street lights, floodlights, vehicle lights | Large-size high power |
| 2020 | 2.0×2.0 | 0.2~0.5 | 2.8~3.4 | 60~150 | 20~60 | 70~90 | 2700~6500 | 120 | Backlight, display, Mini LED | Small-size mid-power |
| 2727 | 2.7×2.7 | 0.2~0.5 | 2.8~3.4 | 60~150 | 20~60 | 70~90 | 2700~6500 | 120 | Backlight, display | Small-size mid-power |
| 3020 | 3.0×2.0 | 0.06~0.1 | 1.8~3.4 | 20~30 | 5~15 | 70~80 | 2700~6500 | 120 | Indicators, backlight | Low power |
| 5030 | 5.0×3.0 | 0.2~0.5 | 2.8~3.4 | 60~150 | 20~60 | 70~90 | 2700~6500 | 120 | Strips, backlight | Mid power |
3. Through-Hole DIP LED (3mm/5mm/8mm/10mm/Straw Hat/Piranha)
Through-hole (DIP) is the most classic LED package. The 5mm round (F5) is the most widely used; straw-hat and piranha packages offer wide beam angles and high brightness, often used in displays and signal lights.
| Model/Type | Diameter (mm) | Power (W) | Vf (V) | If (mA) | Intensity (mcd) | Angle (°) | Common Colors | Typical Applications | Remarks |
|---|---|---|---|---|---|---|---|---|---|
| 3mm round (F3) | 3.0 | 0.03~0.06 | 1.8~3.4 | 15~25 | 100~10000 | 15~60 | All colors | Indicators, toys, small appliances | T-1 size |
| 5mm round (F5) | 5.0 | 0.06~0.1 | 1.8~3.4 | 20~30 | 200~20000 | 15~60 | All colors | Displays, signal lights, flashlights | T-1 3/4, most common |
| 8mm round (F8) | 8.0 | 0.1~0.2 | 1.8~3.4 | 30~50 | 500~30000 | 15~45 | All colors | Outdoor lighting, high-power indicators | High-brightness type |
| 10mm round (F10) | 10.0 | 0.1~0.5 | 1.8~3.6 | 30~150 | 1000~50000 | 15~45 | All colors | High-power indicators, signal lights | Largest DIP |
| 5mm straw hat | 5.0 | 0.06~0.1 | 1.8~3.4 | 20~30 | 100~2000 | 120 | All colors | Strips, fluorescent lamps, backlight | Wide-angle emission |
| 8mm straw hat | 8.0 | 0.1~0.2 | 1.8~3.4 | 30~50 | 200~5000 | 120 | All colors | Lighting, decoration | Wide angle |
| Piranha (F5) | 5.0 | 0.1~0.3 | 1.8~3.4 | 30~80 | 500~8000 | 30~120 | All colors | Automotive lights, brake lights, instruments | 4-pin, good heat dissipation |
| Piranha (F8) | 8.0 | 0.2~0.5 | 1.8~3.6 | 50~150 | 1000~15000 | 30~120 | All colors | Automotive headlights, fog lights | High-power piranha |
| 3mm concave | 3.0 | 0.03~0.06 | 1.8~3.4 | 15~25 | 50~500 | 120 | All colors | Diffuse indicators, backlight | Wide angle |
| 5mm concave | 5.0 | 0.06~0.1 | 1.8~3.4 | 20~30 | 100~1000 | 120 | All colors | Strips, diffuse lighting | Wide angle |
| 2mm cylindrical (F2) | 2.0 | 0.02~0.04 | 1.8~3.4 | 10~20 | 50~2000 | 30~60 | All colors | Micro indicators, medical devices | Ultra-small DIP |
| 5mm bi-color | 5.0 | 0.06~0.1 | 1.8~3.4 | 20~30 | 200~5000 | 30~60 | Red/Green, Red/Yellow, etc. | Status indicators, signal lights | 3-pin common cathode/anode |
| 5mm RGB full-color | 5.0 | 0.1~0.2 | R:2.0/G:3.2/B:3.2 | 20 (per color) | 200~2000 per color | 30~60 | RGB full color | Decoration, mood lighting | 4-pin common cathode/anode |
| 5mm flashing LED | 5.0 | 0.06~0.1 | 1.8~3.4 | 20~30 | 200~5000 | 30~60 | Red/Green/Yellow/Blue | Warning lights, decoration | Built-in IC self-flashing |
| 5mm slow-flash RGB | 5.0 | 0.1 | 1.8~3.4 | 20~30 | 200~3000 | 30~60 | Seven-color fade | Decoration, toys | Built-in IC color fading |
| Rectangular 2×5×7 | 2×5×7 | 0.06~0.1 | 1.8~3.4 | 20~30 | 100~3000 | 60~120 | All colors | Panel indicators, backlight | Rectangular DIP |
| Tower LED | 3/5mm | 0.03~0.1 | 1.8~3.4 | 15~30 | 100~5000 | 15~30 | All colors | Focused indicators, signal lights | High-focus type |
| 0.5W through-hole | 5/8mm | 0.5 | 1.8~3.4 | 150 | 5000~20000 | 30~120 | All colors | Lighting, automotive, industrial | Hongcheng mid-power DIP |
4. High-Power LED (1W/3W/5W Luxeon-style, Ceramic Series)
High-power LEDs run 1~10W per bead and must be used with an aluminum substrate for heat dissipation; they are the core light source of flashlights, floodlights and street lights.
| Model/Series | Package Size | Power (W) | Vf (V) | If (A) | Flux (lm) | CRI | CCT (K) | Thermal Res. (℃/W) | Beam Angle | Typical Applications | Brand/Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Luxeon-style 1W | 3.5×3.5mm | 1 | 3.0~3.6 | 0.35 | 80~130 | 70~90 | 2700~10000 | ≤10 | 60~120 | Flashlights, small spotlights | Generic domestic |
| Luxeon-style 3W | 3.5×3.5mm | 3 | 3.2~3.8 | 0.7 | 220~350 | 70~80 | 2700~10000 | ≤8 | 60~120 | Flashlights, floodlights | Generic domestic |
| Luxeon-style 5W | 3.5×3.5mm | 5 | 3.2~4.0 | 1.0~1.5 | 400~600 | 70~80 | 2700~10000 | ≤6 | 60~120 | Floodlights, street lights | Generic domestic |
| CREE XP-E | 3.5×3.5mm | 1~3 | 2.9~3.6 | 0.35~1.0 | 114~350 | 70~90 | 2600~10000 | 9 | 60~115 | Flashlights, signal lights | CREE |
| CREE XP-G2 | 3.5×3.5mm | 1~5 | 2.9~3.5 | 0.35~1.5 | 150~580 | 70~90 | 2700~6500 | 6 | 115 | Flashlights, vehicle lights | CREE |
| CREE XP-G3 | 3.5×3.5mm | 1~5 | 2.8~3.4 | 0.35~2.0 | 169~776 | 70~90 | 2700~6500 | 5 | 115 | High-efficacy lighting | CREE |
| CREE XP-G4 | 3.5×3.5mm | 1~10 | 2.8~3.5 | 0.35~3.0 | 197~1130 | 70~95 | 2700~6500 | 4 | 115 | Professional lighting | CREE latest |
| CREE XP-L2 | 5.0×5.0mm | 3~10 | 2.8~3.5 | 1.0~3.0 | 500~1172 | 70~90 | 2700~6500 | 3 | 115 | High-power flashlights, vehicle lights | CREE |
| CREE XTE | 5.0×5.0mm | 1~5 | 2.9~3.6 | 0.35~1.5 | 150~550 | 70~90 | 2700~10000 | 6 | 115 | Vehicle lights, floodlights | CREE |
| CREE XHP35 | 3.5×3.5mm | 5~15 | 6~13V | 0.7~1.4 | 600~1800 | 70~90 | 2700~6500 | 3 | 115 | High-power flashlights, searchlights | CREE high-voltage |
| CREE XHP50 | 5.0×5.0mm | 6~18 | 6~13V | 1.0~2.4 | 800~2500 | 70~90 | 2700~6500 | 2 | 115 | High-intensity lighting, vehicle lights | CREE |
| CREE XHP70 | 7.0×7.0mm | 12~30 | 6~13V | 2.0~4.8 | 1800~4800 | 70~90 | 2700~6500 | 1.5 | 115 | Searchlights, stage lights | CREE ultra-high power |
| Lumileds LUXEON 3535L | 3.5×3.5mm | 1~3 | 2.8~3.6 | 0.35~1.0 | 100~350 | 70~95 | 2700~6500 | 6 | 120 | General lighting | Lumileds |
| Lumileds LUXEON 5050 | 5.0×5.0mm | 3~6 | 2.8~3.6 | 1.0~1.8 | 300~700 | 70~90 | 2700~6500 | 4 | 120 | Vehicle lights, floodlights | Lumileds |
| OSRAM Oslon Square | 3.0×3.0mm | 1~5 | 2.8~3.6 | 0.35~1.5 | 120~600 | 70~95 | 2700~6500 | 5 | 115 | Vehicle lights, professional lighting | OSRAM |
| OSRAM Oslon Black | 3.0×3.0mm | 1~5 | 2.8~3.6 | 0.35~1.5 | 100~500 | 70~90 | 2700~6500 | 5 | 115 | Automotive headlights | OSRAM automotive |
| Nichia 757 | 3.5×3.5mm | 1~3 | 2.8~3.6 | 0.35~1.0 | 120~380 | 70~98 | 2700~6500 | 6 | 120 | High-end lighting, display | Nichia |
| Nichia 7020 | 2.0×5.0mm | 0.5~1 | 2.8~3.4 | 0.15~0.35 | 50~150 | 70~95 | 2700~6500 | 8 | 120 | Backlight, lighting | Nichia |
| Samsung LM301B | 3.0×3.0mm | 0.2~0.5 | 2.6~3.0 | 65~150 | 25~80 | 70~90 | 2700~6500 | — | 120 | Horticulture lights, panel lights | Samsung high efficacy |
| Samsung LM301H | 3.0×3.0mm | 0.2~0.5 | 2.6~3.0 | 65~150 | 25~85 | 70~95 | 2700~6500 | — | 120 | Horticulture lights, high-end lighting | Samsung horticulture |
| Seoul Z5P | 3.0×3.0mm | 0.2~1 | 2.8~3.4 | 65~350 | 25~150 | 70~90 | 2700~6500 | 6 | 120 | General lighting | Seoul Semiconductor |
| Epistar 45mil | 3.5×3.5mm | 1~3 | 3.0~3.6 | 0.35~1.0 | 80~300 | 70~90 | 2700~10000 | 8 | 120 | General lighting | Epistar |
5. COB Integrated Light Sources (1414/1919/2828/3838)
COB (Chip on Board) packages multiple dies directly on the substrate, delivering a uniform beam without ghosting. It is the mainstream solution for spotlights, downlights and track lights, covering 3~500W.
| Model/Size | Emitting Surface (mm) | Power (W) | Vf (V) | If (mA) | Flux (lm) | Efficacy (lm/W) | CRI | CCT (K) | Typical Applications | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|
| COB 1414 | Φ11 | 5~15 | 15~38 | By voltage: ~330mA~1A at 15V; ~132~395mA at 38V | 500~2100 | 100~140 | 70~95 | 2700~6500 | Small spotlights, candle lights, MR11 | Small-size COB |
| COB 1313 | Φ9~11 | 3~12 | 9~36 | 300~400 | 300~1680 | 100~140 | 70~95 | 2700~6500 | MR16, small spotlights | Mini COB |
| COB 1919 | Φ13~15 | 10~40 | 20~40 | 500~1050 | 1200~5600 | 100~140 | 70~98 | 2700~6500 | Spotlights, downlights, track lights | Mainstream size |
| COB 1818 | Φ12~14 | 8~30 | 18~38 | 450~800 | 960~4200 | 100~140 | 70~95 | 2700~6500 | Spotlights, downlights | Common size |
| COB 2828 | Φ19~23 | 20~100 | 30~60 | 660~3600 | 2400~14000 | 100~150 | 70~98 | 2000~25000 | Track lights, floodlights, stage lights | High-power mainstream |
| COB 2525 | Φ17~20 | 15~60 | 27~55 | 550~1500 | 1800~8400 | 100~140 | 70~95 | 2700~6500 | Spotlights, downlights, floodlights | Mid/high power |
| COB 3838 | Φ28~32 | 50~200 | 36~110 | 1000~3000 | 6000~28000 | 100~140 | 70~98 | 2000~25000 | Floodlights, street lights, stage lights | High power |
| COB 4040 | Φ30~34 | 60~250 | 40~120 | 1200~3500 | 7200~35000 | 100~140 | 70~95 | 2000~25000 | Floodlights, high-mast lights | Ultra-high power |
| COB 5050 | Φ38~45 | 100~500 | 50~150 | 2000~4680 | 12000~70000 | 100~140 | 70~98 | 2000~25000 | Stage lights, searchlights, film lights | Ultra-high power |
| COB AC220V 1414 | Φ11 | 3~9 | 220 (AC) | 15~40 | 300~1260 | 100~140 | 70~90 | 2700~6500 | Driverless spotlights, bulbs | High-voltage driverless |
| COB AC220V 1919 | Φ13~15 | 5~15 | 220 (AC) | 25~70 | 500~2100 | 100~140 | 70~90 | 2700~6500 | Driverless downlights, spotlights | High-voltage driverless |
| COB dual-CCT 1919 | Φ13~15 | 10~40 (dual channel) | 20~40 | 500~1050 | 1200~5600 | 100~140 | 70~95 | 2700+6500 adjustable | Smart dimming spotlights, downlights | Dual CCT adjustable |
| COB RGBW 1919 | Φ13~15 | 10~30 | 20~40 | 300~800 | 800~3000 | 80~120 | — | RGB+W | Stage lights, mood lighting | Full-color COB |
| COB full-spectrum 1919 | Φ13~15 | 10~40 | 20~40 | 500~1050 | 1000~5000 | 90~130 | 95~98 | 2700~6500 | Studio lights, museum lighting | High-CRI full spectrum |
| COB horticulture 2828 | Φ19~23 | 30~100 | 30~60 | 1000~3600 | — | 2.0~3.0μmol/J | — | 380~780nm full spectrum | Grow lights, greenhouse supplemental lighting | Horticulture spectrum |
| Citizen CLU048 | 28×28mm | 20~50 | 50~60 | 400~900 | 2800~7000 | 130~160 | 70~98 | 2700~6500 | High-end track lights, commercial lighting | Citizen high-end |
| Bridgelux Vero | 28×28mm | 20~60 | 30~40 | 700~1800 | 2800~8400 | 120~150 | 70~98 | 2700~6500 | Commercial lighting, floodlights | Bridgelux high-end |
| CREE CXA2540 | 24×24mm | 20~50 | 36~42 | 550~1400 | 2600~7000 | 120~150 | 70~95 | 2700~6500 | High-end spotlights, track lights | CREE COB |
6. Addressable RGB LED (5050RGB/WS2812B/SK6812)
Addressable RGB beads fall into two categories: plain RGB needs external PWM control, while built-in-IC beads such as WS2812B/SK6812 support single-wire cascaded per-pixel control — the core of mood lighting and pixel screens.
| Model | Package Size | Power (W) | Operating Voltage (V) | Current (mA) | Control | Grayscale | Refresh Rate | Beam Angle | Typical Applications | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|
| 5050RGB (plain) | 5.0×5.0mm | 0.6 (0.2 per color) | R:2.0/G:3.2/B:3.2 | 20 (per color) | Common cathode/anode | None (external PWM) | — | 120 | Plain RGB strips, decoration | Three dies, no IC |
| 2835RGB | 2.8×3.5mm | 0.2 | R:2.0/G:3.2/B:3.2 | 20 (per color) | Common cathode/anode | None (external PWM) | — | 120 | Thin strips, backlight | Small-size RGB |
| 3535RGB | 3.5×3.5mm | 0.6~1.5 | R:2.2/G:3.4/B:3.4 | 50~150 (per color) | Common cathode/anode | None (external PWM) | — | 120 | Stage lights, floodlights | High-power RGB |
| 5050RGBW | 5.0×5.0mm | 0.3~0.5 | R:2.0/G:3.2/B:3.2/W:3.0 | 20~60 (per color) | Common cathode/anode | None (external PWM) | — | 120 | Mood lighting, strips | Four-color RGB+white |
| WS2812B | 5.0×5.0mm | 0.2~0.3 | 5V (DC) | 60 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | Addressable strips, pixel screens, PC case lights | Most common built-in IC |
| WS2811 (external) | — | — | 5~12V | — | Single-wire cascade (external IC) | 256 levels/channel | ≥400Hz | — | Light strings, modules, exposed pixels | External-IC solution |
| WS2813 | 5.0×5.0mm | 0.2~0.3 | 5V (DC) | 60 (full on) | Dual-wire cascade (DIN+BIN) | 256 levels/channel | ≥2000Hz | 120 | High-reliability addressable lights, engineering strips | Breakpoint resume |
| WS2815 | 5.0×5.0mm | 0.2~0.3 | 12V (DC) | 60 (full on) | Dual-wire cascade | 256 levels/channel | ≥2000Hz | 120 | High-voltage strips, engineering lighting | 12V breakpoint resume |
| SK6812 | 5.0×5.0mm | 0.2~0.3 | 5V (DC) | 60 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | Smart strips, mood lighting | WS2812-compatible |
| SK6812RGBW | 5.0×5.0mm | 0.3~0.5 | 5V (DC) | 80 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | High-end mood lighting, strips | Four-channel RGBW |
| SK6812MINI | 3.5×3.5mm | 0.15 | 5V (DC) | 45 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | Keyboard backlight, small pixels | Small-size built-in IC |
| APA102 | 5.0×5.0mm | 0.2~0.3 | 5V (DC) | 60 (full on) | SPI dual-wire (CLK+DATA) | 256 levels/channel | ≥20kHz | 120 | High-speed pixel screens, LED matrices | High-speed SPI protocol |
| APA102C | 5.0×5.0mm | 0.2~0.3 | 5V (DC) | 60 (full on) | SPI dual-wire | 256 levels/channel | ≥20kHz | 120 | High-speed display, film lights | Improved APA102 |
| LPD8806 | 5.0×5.0mm | 0.2~0.3 | 5V (DC) | 60 (full on) | SPI dual-wire | 256 levels/channel | ≥4MHz | 120 | High-speed strips, displays | Classic high-speed IC |
| TM1812 | 5.0×5.0mm | 0.2~0.3 | 5~12V | 60 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | Strips, light strings | Domestic alternative |
| TM1914 | 5.0×5.0mm | 0.2~0.3 | 12V (DC) | 60 (full on) | Dual-wire cascade | 256 levels/channel | ≥1000Hz | 120 | Engineering lighting, high-voltage strips | 12V breakpoint resume |
| INPIXL9882 | 5.0×5.0mm | 0.2~0.3 | 5V (DC) | 60 (full on) | Dual-wire cascade | 256 levels/channel | ≥4000Hz | 120 | High-refresh display, stage | High refresh rate |
| UCS1903 | — | — | 5~12V | — | Single-wire cascade (external IC) | 256 levels/channel | ≥400Hz | — | Light strings, modules | Domestic external IC |
| SM16703 | — | — | 5~12V | — | Single-wire cascade (external IC) | 256 levels/channel | ≥400Hz | — | Strips, light strings | Domestic external IC |
| P9813 | — | — | 5V | — | SPI dual-wire (external IC) | 256 levels/channel | ≥1MHz | — | Displays, matrices | External IC, high-speed |
| 3535RGB built-in IC | 3.5×3.5mm | 0.3~0.6 | 5V (DC) | 90 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | Small pixels, dot lights | Small-size addressable |
| 2835RGB built-in IC | 2.8×3.5mm | 0.2 | 5V (DC) | 60 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | Thin strips, ultra-thin pixels | Ultra-thin addressable |
| 020 addressable (built-in IC) | 2.0×2.0mm | 0.1 | 5V (DC) | 30 (full on) | Single-wire cascade | 256 levels/channel | ≥400Hz | 120 | Keyboards, wearables, micro displays | Ultra-small addressable |
7. Automotive LED (CSP 1860/2525/3570)
Automotive LEDs must meet automotive process standards. CSP packages have become the mainstream for LED headlamps thanks to their high luminance density, and the 1860 three-die type is the most common headlamp model.
| Model | Package Size | Power (W) | Vf (V) | If (A) | Flux (lm) | CCT (K) | Beam Angle | Automotive Grade | Typical Applications | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|
| CSP 1860 | 1.8×6.0mm | 5~15 | 9~12 | 0.5~1.6 | 500~1800 | 5000~6500 | 120 | Automotive process standard | Headlights, high/low beam | White-wall 3-die/6-die |
| CSP 1860 (3-die) | 1.8×6.0mm | 10~15 | 9~9.5 | 1.1~1.6 | 1200~1800 | 5000~6500 | 120 | Automotive process standard | LED headlamps H7/H11 | Most common headlamp CSP |
| CSP 1860 (6-die) | 1.8×6.0mm | 20~30 | 18~20 | 1.1~1.6 | 2400~3600 | 5000~6500 | 120 | Automotive process standard | High-power headlamps, fog lights | Six-die high power |
| CSP 2525 | 2.5×2.5mm | 3~8 | 3~9 | 0.7~1.0 | 300~1000 | 3000~6500 | 120 | Automotive process standard | DRL, turn signals, tail lights | Small-size CSP |
| CSP 3570 | 3.5×7.0mm | 15~30 | 9~18 | 1.5~2.0 | 1800~4000 | 3000~6500 | 120 | Automotive process standard | Headlights, fog lights, high/low beam | Ceramic substrate, high power |
| CSP 3570 dual-CCT | 3.5×7.0mm | 15~30 | 9~18 | 1.5~2.0 | 1500~3500 | 3000+6000 | 120 | Automotive process standard | Headlamp+fog dual color, light bars | White/yellow dual CCT |
| CSP 7020 | 2.0×7.0mm | 3~10 | 3~12 | 0.5~1.0 | 300~1200 | 3000~6500 | 120 | Automotive process standard | DRL, turn signals, tail lights | Bar-type CSP |
| EMC 3030 | 3.0×3.0mm | 0.5~2 | 2.8~3.6 | 0.15~0.6 | 50~280 | 2700~6500 | 120 | Automotive process standard | DRL, position lights, interior lights | EMC frame, high-temp resistant |
| EMC 3030 (automotive) | 3.0×3.0mm | 1~2 | 2.8~3.6 | 0.35~0.6 | 110~280 | 2700~6500 | 120 | Automotive process standard | DRL, turn signals | Automotive-grade benchmark EMC3030 |
| 3535 automotive | 3.5×3.5mm | 1~5 | 2.8~3.8 | 0.35~1.5 | 100~600 | 2700~6500 | 120 | Automotive process standard | Turn signals, brake lights, reverse lights | Ceramic automotive |
| 5050 automotive | 5.0×5.0mm | 0.5~3 | 2.8~3.6 | 0.15~1.0 | 50~400 | 2700~6500 | 120 | Automotive process standard | Tail lights, interior lights, mood lighting | Automotive 5050 |
| 2835 automotive | 2.8×3.5mm | 0.2~1 | 2.8~3.6 | 0.06~0.35 | 20~140 | 2700~6500 | 120 | Automotive process standard | Interior lights, cluster backlight, mood lighting | Automotive low power |
| OSRAM Oslon Black Flat | 3.0×3.0mm | 1~5 | 2.8~3.6 | 0.35~1.5 | 120~600 | 2700~6500 | 115 | Automotive process standard | Headlights, DRL | OSRAM automotive flagship |
| OSRAM Oslon Square Hyper Red | 3.0×3.0mm | 1~3 | 2.0~2.6 | 0.35~1.0 | 80~200lm (red) | 615~625nm | 115 | Automotive process standard | Brake lights, tail lights | Automotive red only |
| Lumileds LUXEON Altilon | 3.5×3.5mm | 5~15 | 2.8~3.8 | 1.0~4.0 | 500~2000 | 5000~6500 | 115 | Automotive process standard | Headlights, fog lights | Lumileds automotive headlamp |
| CREE XTE (automotive) | 5.0×5.0mm | 1~5 | 2.9~3.6 | 0.35~1.5 | 150~550 | 2700~6500 | 115 | Automotive process standard | Headlights, DRL | CREE automotive |
| Nichia NVSW219 | 3.5×3.5mm | 1~3 | 2.8~3.6 | 0.35~1.0 | 100~350 | 2700~6500 | 120 | Automotive process standard | DRL, turn signals | Nichia automotive |
| Seoul S3Z | 3.0×3.0mm | 1~3 | 2.8~3.6 | 0.35~1.0 | 100~350 | 2700~6500 | 120 | Automotive process standard | DRL, tail lights | Seoul automotive |
| Red 620nm automotive | 3.5×3.5mm | 1~3 | 2.0~2.6 | 0.35~1.0 | 50~200lm | 615~625nm | 120 | Automotive process standard | Brake lights, tail lights, high-mount stop | Red only |
| Yellow 590nm automotive | 3.5×3.5mm | 1~3 | 2.0~2.4 | 0.35~1.0 | 30~150lm | 585~595nm | 120 | Automotive process standard | Turn signals, warning lights | Yellow only |
| Ice-blue 470nm automotive | 3.0×3.0mm | 0.5~2 | 2.8~3.4 | 0.15~0.6 | 20~100lm | 460~475nm | 120 | Automotive process standard | DRL, mood lighting | Ice-blue only |
8. Special Light Sources (IR 850/940nm, UV 365/395nm, Horticulture)
Special light sources cover non-visible applications such as IR illumination, UV curing and plant growth; wavelength — not brightness — is the key selection factor.
| Category | Model/Spec | Package | Power (W) | Peak Wavelength (nm) | Vf (V) | If | Optical Power/Radiant | Typical Applications | Remarks |
|---|---|---|---|---|---|---|---|---|---|
| IR | 850nm 2835 | SMD2835 | 0.2~0.5 | 850 | 1.4~1.8 | 60~150mA | 5~20mW | Security cameras, IR illumination, touch screens | Visible red glow |
| IR | 850nm 3535 | SMD3535 | 1~3 | 850 | 1.4~1.8 | 350~1000mA | 30~150mW | Security cameras, IR lighting | High-power IR |
| IR | 940nm 2835 | SMD2835 | 0.2~0.5 | 940 | 1.2~1.6 | 60~150mA | 3~15mW | Security, remotes, IR touch | No red glow |
| IR | 940nm 3535 | SMD3535 | 1~3 | 940 | 1.2~1.6 | 350~1000mA | 20~100mW | Security, face recognition, iris recognition | No-glow high power |
| IR | 940nm 5mm DIP | DIP5mm | 0.06~0.1 | 940 | 1.2~1.6 | 20~50mA | 1~5mW | Remotes, IR transmitters | Most common IR emitter |
| IR | 850nm high-power COB | COB | 10~100W | 850 | 30~60 | 300~2000mA | 1~20W radiant | IR illumination, night vision, security | High-power IR area source |
| IR | 730nm 2835 | SMD2835 | 0.2~0.5 | 730 | 1.6~2.0 | 60~150mA | 5~15mW | Far-red for horticulture, medical | Far red |
| IR | 810nm 3535 | SMD3535 | 1~3 | 810 | 1.4~1.8 | 350~1000mA | 20~100mW | Medical therapy, photodynamic treatment | Near-IR medical |
| IR | 1050nm 3535 | SMD3535 | 1~3 | 1050 | 1.2~1.6 | 350~1000mA | 10~50mW | Biometrics, gas detection | Long-wave IR |
| UV-A | 365nm 3535 | SMD3535 | 1~3 | 365 | 3.2~3.8 | 350~1000mA | 500~2000mW | UV curing, NDT, anti-counterfeit detection | Long-wave UV |
| UV-A | 395nm 2835 | SMD2835 | 0.2~0.5 | 395 | 3.0~3.6 | 60~150mA | 10~50mW | UV curing, nail lamps, mosquito traps | Near UV |
| UV-A | 405nm 5050 | SMD5050 | 0.5~1 | 405 | 3.0~3.6 | 150~350mA | 20~80mW | UV curing, exposure, sterilization assist | Violet |
| UV-C | 275nm 3535 | SMD3535 | 0.1~0.5 | 275 | 5~7 | 100~300mA | 1~10mW | Water sterilization, air purification, surface disinfection | Deep UV sterilization |
| UV-C | 265nm COB | COB | 1~10W | 265 | 10~30 | 100~500mA | 10~100mW | Industrial sterilization, water treatment | High-power deep UV |
| Horticulture | 660nm red 2835 | SMD2835 | 0.2~0.5 | 660 | 2.0~2.4 | 60~150mA | 10~30mW | Plant growth, seedlings, flowering/fruiting | Red promotes flowering |
| Horticulture | 660nm 3030 | SMD3030 | 0.5~1 | 660 | 2.0~2.4 | 150~350mA | 30~80mW | Plant factories, greenhouse lighting | High-power red |
| Horticulture | 730nm far-red 2835 | SMD2835 | 0.2~0.5 | 730 | 1.6~2.0 | 60~150mA | 5~15mW | Far-red for plants, flowering control | Far red |
| Horticulture | 450nm blue 2835 | SMD2835 | 0.2~0.5 | 450 | 2.8~3.4 | 60~150mA | 5~20mW | Plant and stem/leaf growth | Blue promotes growth |
| Horticulture | Full-spectrum 3030 | SMD3030 | 0.5~1 | 380~780 | 2.8~3.4 | 150~350mA | 2.0~3.0μmol/J | Plant factories, indoor farming | Full-spectrum white |
| Horticulture | Full-spectrum COB 2828 | COB | 30~100W | 380~780 | 30~60 | 1000~3600mA | 2.0~3.0μmol/J | Greenhouse lighting, plant factories | High-power horticulture COB |
| Medical/Beauty | 630nm red 3535 | SMD3535 | 1~3 | 630 | 2.0~2.4 | 350~1000mA | 30~150mW | Phototherapy, beauty, skin treatment | Red for beauty |
| Medical/Beauty | 590nm yellow 3535 | SMD3535 | 1~3 | 590 | 2.0~2.4 | 350~1000mA | 20~100mW | Phototherapy, skin repair | Yellow for beauty |
| Medical/Beauty | 415nm blue 3535 | SMD3535 | 1~3 | 415 | 3.0~3.6 | 350~1000mA | 20~80mW | Acne treatment, sterilization, skin therapy | Blue for beauty |
| Medical/Beauty | 810nm near-IR 3535 | SMD3535 | 1~3 | 810 | 1.4~1.8 | 350~1000mA | 20~100mW | Deep therapy, anti-inflammation, wound healing | Near-IR therapy |
| Industrial inspection | 365nm UV 3535 | SMD3535 | 1~5 | 365 | 3.2~3.8 | 350~1500mA | 500~3000mW | Fluorescence inspection, NDT, leak detection | High-intensity UV |
| Industrial curing | 395nm COB | COB | 10~100W | 395 | 30~60 | 300~2000mA | 5~50W radiant | UV adhesive curing, ink curing, printing | High-power UV curing |
| Backlight/Display | Mini LED 1010 | SMD1.0×1.0 | 0.05~0.1 | 450 (blue) | 2.8~3.2 | 15~30mA | 1~5mW | LCD backlight, Mini LED display | Micro backlight |
| Backlight/Display | Mini LED 2020 | SMD2.0×2.0 | 0.1~0.2 | 450 (blue) | 2.8~3.2 | 30~60mA | 5~15mW | LCD backlight, TV backlight | Small-size backlight |
| Backlight/Display | Micro LED | ≤100μm | μW-level | 450/520/630 | 2.5~3.5 | μA-level | μW-level | Micro LED display, AR/VR | Next-gen display technology |
| Biometrics | 940nm IR 3030 | SMD3030 | 0.5~1 | 940 | 1.2~1.6 | 150~350mA | 10~50mW | Face, fingerprint and iris recognition | No-glow IR |
| Optical communication | 850nm VCSEL | TO package | 0.01~0.1 | 850 | 1.8~2.5 | 5~20mA | 0.1~1mW | Short-reach optical links, data centers | VCSEL |
9. Application-Based Selection Quick Chart
| Application | Recommended Package/Model | Key Considerations |
|---|---|---|
| Appliance/device indicators | 0603, 0805, 1206 SMD or 3mm/5mm DIP | Voltage match, moderate brightness, cost |
| Lighting strips/bulbs | 2835, 5730, 5050 SMD | Efficacy (lm/W), CRI, CCT consistency |
| Flashlights/portable lighting | Luxeon-style 1W/3W, CREE XPE/XPG | Luminous flux, thermal design |
| LED displays/signal lights | 5mm DIP, piranha, straw hat | Luminous intensity (mcd), viewing angle |
| Mood/pixel lighting | WS2812B, SK6812 built-in IC addressable | Control protocol, cascade count, refresh rate |
| Automotive headlamps/DRL | CSP 1860, 2525, 3570 | Automotive process standard, luminance density, thermal management |
| Spotlights/downlights/track lights | COB 1919, 2828 | Beam quality, CRI, power density |
| Security camera illumination | IR 850nm (red glow) / 940nm (no glow) | Wavelength, radiant power, camera sensitivity |
| UV curing/currency verification | UV 365nm/395nm | Wavelength accuracy, optical power |
| Horticulture lighting | 660nm deep red + 730nm far red + 450nm blue | PAR (photosynthetically active radiation), spectrum mix |
Not sure which to choose? Send your application scenario, voltage and brightness requirements to the factory engineers for confirmation. Hongcheng Optoelectronics offers free selection support and samples — Tel/WhatsApp: +86 139 2571 4318, email: sales@led-hc.com.
10. LED Lamp Bead FAQ
What is the voltage of an LED lamp bead?
The operating voltage (forward voltage Vf) is determined by the chip material: red, orange, yellow and yellow-green are about 1.8~2.4V; blue, green, white and violet about 2.8~3.6V. Even the same model comes in bins, so for volume use follow the manufacturer's binning report. Never drive a single bead directly from a 5V or 12V supply without a current-limiting resistor.
What is the difference between 0603 and 0805 beads?
The 0603 is 1.6×0.8mm with a typical power of 0.06~0.1W; the 0805 is 2.0×1.25mm at 0.1~0.15W — brighter and with a more forgiving soldering window. Choose 0805 when space allows, and 0603 for dense small boards. See our article "0805 LED Diodes: Size, Voltage Parameters, and Color Options" for a detailed comparison.
SMD LED vs through-hole LED — which is better?
Neither is absolutely better; it depends on process and application. SMD suits automated placement — small, consistent, and the consumer-electronics mainstream. DIP tolerates mechanical stress, is easy to repair, and offers many viewing angles — good for displays, signal lights and small-batch hand soldering. At equal brightness the two cost about the same, so the decision mainly follows your production process.
How do I calculate the series resistor for an LED?
Formula: R = (supply voltage − LED forward voltage) ÷ target current. Example: a 12V supply driving one white 5mm LED at Vf=3.2V and 20mA gives R=(12−3.2)÷0.02=440Ω — use the standard 470Ω, rated ≥0.25W. See the full quick chart in "How to Calculate LED Current-Limiting Resistors".
Can an LED really last 50,000 hours?
50,000 hours is the theoretical lumen-maintenance life (L70) at an ideal junction temperature. Real life depends on thermal management: every 10℃ rise in junction temperature roughly halves the life. High-power and COB LEDs must have adequate heatsinking, while low-power indicators run within their rated current commonly last over a decade.
Why must high-power LEDs have a heatsink?
About 70% of the input power of a high-power LED turns into heat rather than light; a junction temperature above 120℃ causes permanent lumen depreciation or even dead lights. Beads above 1W should be mounted on an aluminum substrate, above 3W the heatsink area must be calculated, and COB or high-power Luxeon-style parts also require accounting for thermal grease and structural thermal resistance.
What parameters are needed for custom LEDs?
You need to specify: package model (or dimension drawing), color/wavelength (CCT for white), voltage and current, brightness or luminous intensity, beam angle, lens type (clear/diffused), lead length or pad requirements, plus any special environment (high temperature, sulfur exposure, outdoor UV). Hongcheng Optoelectronics supports custom builds from drawings or samples, and can make 3D samples first to confirm the result.
How can I judge LED quality?
Four quick checks: 1) look at the bonding wire and leadframe (gold wire beats alloy wire, copper frames beat iron); 2) measure voltage consistency (the tighter the spread within a lot, the better); 3) light them up and check color uniformity (no dark spots, no color shift); 4) run aging sampling (48 hours at high temperature and humidity to check decay). For volume purchases, ask the manufacturer for LM-80 or aging test data.
For selection advice, free samples or volume quotes, contact Hongcheng Optoelectronics: Tel/WhatsApp +86 139 2571 4318, email sales@led-hc.com.
Data compiled by Hongcheng Optoelectronics (August 13, 2026) from public industry datasheets and manufacturer documents; specific parameters are subject to each manufacturer's latest datasheet.
