One is the issue with the light source, and the other is the issue with the power supply. At present, the light source of LED patch lights is composed of LED beads. First, disconnect the power supply at home, open the lampshade, and use a multimeter to measure whether the LED light source is broken (patch lights are usually connected in series). If so, check the style of the light source and buy a similar light source on Taobao to replace it. When purchasing, pay attention to the voltage range of the light source and purchase a light source with the same voltage.

If the multimeter detects that there is no problem with the light source, it will see if the problem is on the power supply. Generally, LED lights are connected to an external power source, so you can directly purchase a power source to replace them. Some LED lamp manufacturers use poor power supplies, which are prone to problems.

Bulb lamp

Method 1:

1. Hello! Before repairing the LED light, measure the voltage of the power supply and the current flowing through the LED,

2. Then disassemble and inspect all key components one by one: the driver or power supply, LED light beads, and replace all damaged light beads.

3. Identify the cause of damage to the LED bead, and if there is an overcurrent, immediately reduce the driving current. Check if there is a malfunction in the drive, and also identify the cause. If it cannot be repaired, replace it.

If the LED power supply is damaged, buy a power supply with the same parameters as voltage, current, etc. and replace it.

2. If there are many damaged LED lights and the damaged explosion-proof LED lights are concentrated in the same area, the damaged section can be cut off and re welded.

If you have a certain basic knowledge of electronics, you can buy LED lights of the same model and re weld them. But then again, there are many LED patch lamp components on each LED light strip, one or two of which are broken and have little impact on the brightness.

Method 2:

1. The LED chip light is broken. If the LED power supply is damaged, buy a power supply with the same parameters as voltage, current, etc. and replace it.

2. If there are many damaged LED lights and the damaged explosion-proof LED lights are concentrated in the same area, the damaged section can be cut off and re welded.

3. If you have a certain basic knowledge of electronics, you can buy LED lights of the same model and re weld them. But then again, there are many LED chip light components on each LED light strip, one or two of which are broken and have no impact on the brightness