About Us
About Us
Hongcheng Optoelectronics - LED Lamp Bead Manufacturer | LED Indicator Customization
Dongguan Hongcheng Optoelectronics Co., Ltd
Dongguan Hongcheng Photoelectric Co., Ltd.
Global Business
The global business of Guangyu Group is coordinated by Guangyu Group International (Hong Kong) Co., Limited. Guangdong Guangyu Semiconductor Technology Co., Ltd. undertakes front‑end chip packaging and manufacturing of LED products, while Dongguan Hongcheng Optoelectronics Co., Ltd. serves as the core domestic operating entity of the Group. With over 20‑year‑long dedication to the optoelectronics industry, the Group has accumulated mature experience in LED packaging manufacturing, with a total investment of RMB 100 million. The Group is mainly engaged in sales of LED optoelectronic components, post‑processing and supporting fabrication of semi‑finished optoelectronic parts, as well as customized manufacturing of special‑purpose lamps. It is a source manufacturer integrating R&D, precision processing, customized production and domestic & international sales.
Clear work division is implemented within the Group: Guangdong Guangyu Semiconductor Technology Co., Ltd. takes charge of core front‑end processes including die‑bonding, wire‑bonding and packaging molding; Dongguan Hongcheng Optoelectronics focuses on post‑stage precision processing of semi‑finished products and manufacturing of special‑purpose lamps; Guangyu Group International (Hong Kong) Co., Limited is fully responsible for overseas trade and engagement with international clients. Products are supplied directly from the factory without intermediate links.
Development History
Specializing in optoelectronic semiconductor packaging for more than 20 years, the enterprise started with basic LED bead processing business. Through continuous technical upgrading and capacity expansion, a complete semiconductor optoelectronic production system has been established. Supported by the Group’s industrial resources and capital investment, the whole‑process technologies for front‑end packaging and post‑end precision processing have been continuously optimized. Automated production and precision testing equipment are updated iteratively, enabling business expansion into high‑end sectors such as industrial control, automotive electronics, precision medical devices and aerospace. After years of steady growth, a mature group‑operated model has been formed: Hong Kong entity coordinates overseas businesses, the semiconductor subsidiary handles front‑end packaging, and Hongcheng Optoelectronics conducts post‑processing and customized production. With consistent quality, customization capability and large‑scale production capacity, the Group has become a reliable source supplier for mid‑to‑high‑end optoelectronic components and deep‑processing services worldwide.
Manufacturing Capacity
Guangdong Guangyu Semiconductor Technology Co., Ltd. operates 40 sets of fully‑automatic high‑precision LED packaging production lines equipped with premium ASM die‑bonders and wire‑bonders, delivering a comprehensive monthly capacity up to 200KK to fulfill large‑volume orders stably. Grade‑A chips, 99.9% pure gold wires and imported high‑temperature‑resistant low‑degradation encapsulant from Japan, South Korea and Taiwan are adopted across production lines. More than 50% of key raw materials are sourced from premium overseas supply chains to guarantee product consistency, anti‑aging performance, low light attenuation and high reliability. Complete automated post‑processing lines cover sorting by light intensity & color, electrical performance testing, taping, lead cutting & forming and final packaging. A full set of precision testing instruments including spectrum analyzers, ESD protection facilities, thermal shock testers and high‑low‑temperature cycling aging equipment are deployed to build a closed‑loop high‑standard quality control system for the whole production workflow.
Products & Customization Services
Main product portfolio covers full‑range SMD LED from 0201 to 5730, RGB/RGBW multi‑color LED beads, and 2mm‑10mm through‑hole LED indicator lamps. Customization is available on parameters such as voltage, wavelength, color coordinate, brightness binning and colloid appearance. Sample supply, small‑batch trial production and mass‑volume manufacturing are supported with complete Datasheet technical documentation provided. Full‑series products are eligible for compliance reports including RoHS, CE, Halogen‑Free and PFAS to meet global industry access requirements. Meanwhile, semi‑finished optoelectronic component contract processing and special‑purpose lamp customization services are offered.
Quality & Certifications
The enterprise strictly complies with ISO9001:2015 Quality Management System and ISO14001 Environmental Management System. Products have obtained authoritative certifications of RoHS and CE. Adhering to industrial‑control‑grade high‑quality standards, low‑cost inferior generic processing techniques are rejected. Both standardized mass delivery and high‑end personalized customization are guaranteed for long‑term product stability and reliability.
Third-party test reports (RoHS, REACH 253 SVHC, POPs, TSCA, Halogen Free) are available for free download in our Download Center.
Application Fields
Products and deep‑processing services are widely applied in mid‑to‑high‑end precision industries: new‑energy automotive electronics, on‑board intelligent devices, aerospace supporting components, marine & shipboard equipment, high‑end industrial automation, industrial robots, precision instruments & meters, 5G communication facilities, smart wearable devices, precision medical equipment, security & intelligent systems, rail transit, power distribution equipment, smart home and high‑end consumer electronics. Domestic businesses are undertaken by Dongguan Hongcheng Optoelectronics, while overseas businesses are operated uniformly by Guangyu Group International (Hong Kong) Co., Limited. The Group delivers high‑quality LED light sources and overall optoelectronic deep‑processing solutions for global B‑end clients.
VR online factory viewing
Take a virtual walk through our production floor: ASM imported automated production lines and dedicated LED packaging & testing workshops. Every lamp bead uses grade-A chips and 99.9% pure gold wire bonding, with full photoelectric binning and reliability testing before shipment. A Guangyu Group member with 20+ years in LED packaging, supporting custom DIP, SMD and addressable RGB LED series.
Products
Recommended Products
Quality Assurance
Professional quality is trustworthy
Adequate supply of goods
Wholesale of large quantities of spot goods
discounted price
The manufacturer offers affordable prices for production
Factory direct sale
Source factory direct sales
Honest Merchant
Customer first, reputation first
High temperature resistant adhesive
Welding points reinforced with silver glue
Manufacturers directly purchase regular A-grade chips
ASM imported production line
Professional information
Professional Information
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Frequently Asked Questions
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Complete LED diode model guide: 0402/0603/0805/1204/1206/2835/3528/5050/3535/3030 SMD diodes, 3mm/5mm through-hole, COB and Lumileds-style high power, dual-color/RGB full color, plus special UV wavelengths — all in stock at Hongcheng Optoelectronics.
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Where to buy SMD LED diodes? How to verify a China SMD LED manufacturer? Custom bicolor supplier, industrial PCB reliability, datasheet request and wholesale contact - a sourcing FAQ from a Dongguan LED diode factory.
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How to choose a reliable SMD LED manufacturer? Five criteria: source factory capacity, chip and wire materials, ISO-certified quality, complete datasheets, and customization response from a Dongguan SMD LED factory.
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A complete list of reasons for dead LED chip lights. Many customers may find dead lights when using LED chip lights. Often, the engineering team has been searching for a long time but cannot find the problem. Hongcheng Optoelectronics Engineering provides the following points for everyone. If you encounter the following situations, you can refer to them:1. Generally, LED brackets are packaged using bracket bars, which are made of copper or iron metal materials stamped by molds. Due to the high cost of copper materials, the cost is naturally high. Influenced by fierce competition in the market, in order to reduce manufacturing costs, most markets use cold-rolled low-carbon steel to punch LED brackets. Iron bracket bars need to be silver plated, which has two functions: one is to prevent oxidation and rust, and the other is to facilitate welding. The electroplating ...
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There are probably two situations where this problem occurs:1. Are your power plugs and sockets compatible and confirmed to be functioning properly? Please try replacing the plug or socket to check if the power supply is normal;2. If there is still a "flash", it may be a problem with the power driver. It is possible that the output voltage of the driver is not consistent with the driving voltage required by your LED strip (you can test whether it matches or understand the driving voltage required by your strip). It is also possible that the power driver is damaged internally. Please try replacing it with a matching driving power supply;Note: If your light strip is directly connected to 220V mains power and this problem occurs, it must be due to a broken AC to DC converter inside the high-voltage plug.LED strip lights require a DC constant voltage power supply.If eq...
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There are several reasons for LED bead leakage:1. Excessive height and thickness of the base adhesive can cause electrical leakage.2. Improper process can cause chip cracking, such as excessive pressure on the magnetic nozzle during wire bonding due to improper operation of the wire bonding machine, resulting in chip damage and cracking.3. Static electricity causes leakage in lamp beads, which is usually caused by friction and is a relatively easy cause of leakage. Therefore, when producing lamp beads, employees should be required to wear anti-static clothing and hats to minimize the occurrence of static electricity.4. The chip itself has defects that cause leakage.5. Chip contamination is a common and frequent issue. The reason may be due to not paying attention when using the chip, which may cause the chip to be contaminated with dust or water vapor. LED chips are very sm...
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1. LED (Light Emitting Diode) packaging refers to the packaging of light-emitting chips, which is significantly different from integrated circuit packaging. The packaging of LED not only requires protection of the wick, but also transparency. So LED packaging has special requirements for packaging materials.2. LED packaging technology is mostly developed and evolved based on discrete device packaging technology, but it has significant particularities. In general, the die of discrete devices is sealed inside a package, and the main function of the package is to protect the die and complete electrical interconnection. LED packaging is responsible for outputting electrical signals, protecting the normal operation of the chip, and outputting visible light. It has both electrical and optical parameters, and cannot simply package discrete components for LED design and ...
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LED is an abbreviation for light emitting diode in English. Its basic structure is an electroluminescent semiconductor material chip, which is cured onto a bracket with silver or white glue, and then connected to the chip and circuit board with silver or gold wires. The chip is then sealed with epoxy resin around it to protect the internal core wires. The installation of the housing ensures that the LED light has good seismic performance. The application areas involve daily household appliances and machinery production such as mobile phones, desk lamps, and home appliances.Reasons for yellowing of LED beads:It is the fluorescent powder in the LED beads that has been poisoned. When the fluorescent powder is invaded by sulfur or sulfides, poisoning occurs, mainly manifested as blackening and deterioration, losing the function of the fluorescent pool powder, causing the ...
