Infrared LED lamp beads are classified as voltage-active equipment. In practice, the current is 20mA as the upper limit. Due to various reasons in use, this constitutes a larger current. If the maintenance method is not selected, this larger current will exceed The LED lamp beads will be damaged after a certain time and height.
The reasons that constitute the damage of the UV LED lamp beads are:
1. Sudden increase in power supply voltage.
2. Water enters into the lamp, and the water is conductive.
Diagram of LED light emitting principle
3. The temperature inside the lamp is too high, which deteriorates the characteristics of the deep-ultraviolet LED lamp beads.
4. The anti-static work has not been done well during the time of the equipment, so that the inside of the LED lamp beads has been damaged by static electricity. Although the normal voltage and current values are applied, it is very easy to cause damage to the LED lamp beads.
5. A certain LED lamp bead is short-circuited due to its own quality damage, and its original voltage drop is transferred to other LED lamp beads.
6. The short circuit of a certain component or printed line or other wire in the circuit makes the part of the LED lamp bead power supply path short circuit, which increases the local voltage
