What factors lead to LED lamp chip is damaged

     The sudden rise in the supply voltage, resulting in the LED lamp chip is damaged. The reasons for the sudden rise of the power supply voltage are many, for example, the power quality is not good, or improper use of the user, which may cause a sudden rise in power supply voltage.
     In the circuit a component or a printed line or other leads is shorting and lead to LED lamp local short circuit, which causes the voltage to increase in this area.
     A LED because of its poor quality and lead to short circuit, its voltage will be transferred to other LED chips.
     The temperature inside the lamp is too high, so that the characteristic of LED is poor.
     Internal water inlet.
     You didn't do anti-static processing in the assembly, so that the inside of the LED lamp has been hurt by static electricity. Even though the normal voltage and current values are extremely easy to cause the LED lamp chip to be damaged. LED lamp factory should keep in mind when assembling the LED lamp.
     These causes will lead to a sharp rise in the current of the LED lamp, LED chip will be burned due to overheating. According to our experience, the majority of LED burn after the poles are short circuit, a small part is broken circuit. Each LED has about 3.2V pressure drop. After it was damaged, if it is broken circuit, this string LED chip will not shine. If it is a short circuit, the voltage will be transferred to other LED lamp chip, resulting in other LED current increases, the other LED will be damaged more quickly, and even endanger power supply. Small damage is very easy to cause major accidents.

The above article from Sourcechip official website, reproduced please specify. yjblog1603