LED panel light is a solid-state semiconductor device that can convert electrical energy into visible light, which can directly convert electricity into light. The heart of the LED is a semiconductor chip, one end of the chip is attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the entire chip is encapsulated by epoxy resin. The semiconductor wafer consists of two parts, one part is a P-type semiconductor, in which holes dominate, and the other end is an N-type semiconductor, where electrons are mainly. But when the two semiconductors are connected, a P-N junction is formed between them. When the current acts on the wafer through the wire, the electrons will be pushed to the P region, where the electrons and holes recombine, and then emit energy in the form of photons, which is the principle of LED light.
Causes of damage to LED panel lights
1. The voltage of the current is unstable, and the rise of the power supply voltage is particularly likely to cause the destruction of the LED lamp. There are many reasons for the sudden rise of the voltage, the quality of the power supply, or the improper use of the user, etc., which may cause the power supply voltage of the power supply to suddenly rise. high.
2. It is also possible that the LED is damaged due to its own quality and thus forms a short circuit, and its original voltage drop is transferred to other LEDs.
3. The power supply path of the lamp is partially short-circuited, which is usually caused by a component in the line, or a short-circuit of other wires, which increases the voltage in this place.
4. It is also possible that water has entered the lamp, because water is conductive, which will short-circuit the circuit of the lamp.
6. The anti-static work is not done well during assembly, so that the interior of the LED has been damaged by static electricity. Although normal voltage and current values are applied, it is very easy to cause damage to the LED.
Cleaning and maintenance of LED panel lights
First of all, to prevent electrical shock, to prevent transient overcurrent. Generally, electrical shocks are caused by extremely large transient overcurrents, and the direct consequence is to damage other parts close to the welding line, such as sealing materials. Secondly, do a good job in the heat dissipation system. Nowadays, the related technology of LED heat dissipation system in China is not very mature, and excessive heat will directly cause damage to the internal components of the LED lighting, which will lead to the failure of the LED lighting.