What is a COB LED light source?
COB LED light source is usually a small wafer integrated package on a ceramic (or other) substrate, such as SMD3528 20mA 3.2V 0.064W each, integrated 30, 3 series 10 parallel, 200mA, 9.6V, 1.92 W, hundreds of integrated, and some with power greater than 100W.
Generally speaking, COB is usually used in floodlights, spotlights, street lights, etc., which can save PCB, LENS, etc. The structure is more reliable than single-wafer LEDs, and it will not appear that the chip is completely extinguished, but the packaging factory is required to select crystals. The time-division of the circle requires high voltage consistency. It should be in series and parallel in the integrated structure. There is no problem in series connection. In parallel, the voltage is inconsistent and the current is very different. , which affects the same time, which in turn affects the others.
Features of COB light source:
1. It can be freely deployed and combined to form a variety of LED lamps, which is convenient to assemble.
2. High reliability, no dead lights and no plaques.
3. The light is uniform, the light is soft, there is no glare, and it does not hurt the eyes.
4. High color rendering index and high light efficiency.
5. Under normal current, the attenuation is small, and the control is less than 3% within 1000H.
6. Safe and reliable, basically work under 50V, and fully consider the certification of use.
7. Green and environmental protection, no pollution.
The use of COB light source:
Widely used in LED bulbs, LED light cups, LED spotlights, LED downlights, LED ceiling lights, and LED bean gall lights.
Generally speaking, COB light source is mainly used for indoor lighting. Its advantages are that the assembly technology is relatively simple, and the light plate is more uniform, but the heat dissipation is not as good as TOP, and it can only be used in the range of 3-50 watts. a little lower.
Benwei Lighting's products using COB light sources include spotlights, PAR lights, downlights, ceiling lights, and other series. After several years of technical precipitation, the products have become very stable and reliable.
