Relative single crystal structure of round LED relatively reliable, not chip on the whole situation, but demands assembly house pick wafer when voltage consistency is very high, should be integrated structure series-parallel inside have, series no topic, parallel voltage is not consistent,
Map in general is, generally speaking COB generally used in project-light lamp, shoot the light, street light, etc, can save the PCB, LENS, etc., is from the function of price compared to traditional two feet, or 3535 packaging format does not prevail,
In fact usually power is much bigger than I interval, integrated hundreds, also has a power greater than 100 w,
Is generally a small wafer integrated packaging to a ceramic substrate (or other), for example, SMD 3528 20 ma 3.2 V 0.064 W per capsule, I integrated 30, make a list of 10 and 3, 200 ma, 9.6 V, 1.92 W,
Current difference is very big, if one is low voltage, current is too large burn very easily, affect this together, and then affect the other and, most die the whole lamp.