Choosing LEDs for Smart Home Indicators: Selection Guide
The indicator lights of smart home devices (smart speakers, floor sweepers, smart locks, gateways) are an important part of human-computer interaction, and breathing lights, circular lights, and colorful status lights have become standard. Hongcheng Optoelectronics provides a full range of intelligent indication solutions from single and dual color to RGB iridescence.
Key points for selecting smart home indicator lights
- RGB Illusion: Choose built-in IC Illusion LED beads (2121/2020/0807) for status colorful display, single line control, saving MCU pins.
- Breathing effect: Ordinary LED beads can be combined with PWM to achieve breathing light, and choosing a matte gel provides a softer light effect.
- Side illumination: Choose 4020/0802 side illumination patch for ultra-thin body, with hidden light output.
- Low power consumption: Choose a 2mA low current model for battery devices.
- Small package: Choose 0603/0402 patch for compact structure.
Hongcheng Optoelectronics recommends products
- Imitation Luminous RGB LED Beads
- 6028 Colorful LED Beads
- 2121 Colorful LED Beads
- 4020 side emitting LED beads
- 0802 side emitting patch LED beads
- 0602 side emitting patch LED beads
- 0603 SMD LED beads
- 3mm bordered white misty dual color direct insertion LED beads
- 5mm Bordered White Misty Double Color Direct Insertion LED Bead
- 5mm white transparent dual color direct insertion LED beads with edges
- 0805 dual color patch LED beads
- 0805 SMD LED beads
Frequently Asked Questions
Q: What light beads are used for the colored circular light of smart speakers?
Answer: Using the built-in IC's iridescent LED beads (such as 2121/2020 iridescent), a single signal line can control the color of each lamp. See details for more informationCustomized Lamp Bead Solution.
Extended Reading
- Working principle and selection guide of dual color LED beads
- Recommended models of low-power LED indicator lights
- Can LED indicator lights be customized to change color and brightness?
Hongcheng Optoelectronics has been focusing on LED indicator beads for more than 20 years, with A-level chips, 99.99% gold wire packaging, RoHS environmental certification, and support for free samples and customized selection. For procurement inquiries, please contactsales@led-hc.com.

