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"China Building Materials Network" causes six major causes of LED lamp damage. White LEDs are voltage-sensitive devices. In actual operation, the current is 20mA, but the current is often increased due to various reasons in use. Large, if no protective measures are taken, the LED will be damaged after the increased current exceeds a certain time and amplitude. 1. The sudden increase of the supply voltage. 2. A short circuit of a component or printed line or other conductor in the line forms a partial short circuit of the LED power supply path, causing the voltage in this place to increase. 3. An LED is short-circuited due to its own quality, and its original voltage drop is transferred to other LEDs. 4. The temperature inside the lamp is too high, which makes the characteristics of the LED deteriorate. 5. The inside of the lamp is filled with water, and the water is electrically conductive. 6. At the time of assembly, there is no anti-static work, so that the inside of the LED has been damaged by static electricity. Despite the application of normal voltage and current values, it is extremely susceptible to LED damage.