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Typical units from mainland China makers come in white, warm and pure white, and RGB.
Mainland China's standard selection of SMD LEDs consists of top- and sideview models in white, warm and pure white, and RGB. The former comes mostly in 3528, 5050, 2835, 3014, 3020, 5630 and 5730 sizes, and the sideview types in 010, 020, 335 and 215. At present, topview kinds in 3528 and 5050 dominate output. Most products are RoHS-compliant.
The majority of mainland suppliers source chips from Taiwan's Genesis Photonics, Chi Mei and Opto Tech, or US providers.
Companies expect the downward trend in prices to persist in the months ahead amid declining material and component costs.
Here is a selection of SMD LEDs from mainland China:
Beijing Yuji Science and Technology Co. Ltd's model BX5730L 5730 SMD LED in white or warm white has 90 to 98 CRI.
The diode comes with a silver-plated aluminum base. It meets RoHS requirements.
The maker accepts a minimum order of 10,000 units. Delivery lead time is 60 days.
BonLED Optoelectronic Co. Ltd's model BL-TOP5050W65-1W120 white SMD LED delivers 25 lumens. It has a 120-degree viewing angle.
The 5050 diode in PLCC-6 package has 3.3V typical forward voltage and 100 to 150mA continuous forward current.
The minimum order is 20,000 units. Delivery takes 10 days.
The B2835*W8ZWC model from BOSMFC Optoelectronics Co. Ltd is a 2835 SMD LEDwith 120 lm/W luminous efficacy and ≥80 CRI. The viewing angle is 120 degrees.
The RoHS-compliant unit has 0.21 to 0.5W rated power, 2.8 to 3.4V or 3 to 3.6V rated voltage and 60 to 150mA rated current. It uses a PLCC-2 package.
The maker accepts a minimum order of 3,000 units. Delivery is within 12 days.
Qingdao Hehui Optoelectronic Co. Ltd's model HH-2835W white topview SMD LED delivers 22 lumens luminous flux and 3,000 to 7,000K color temperature. It has a 110-degree viewing angle.
The 2835 diode has 3 to 3.2V forward voltage and 60mA rated current. It conforms to RoHS guidelines.
The minimum order is 100,000 units, and delivery is within 5 days.
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