How to Repair a Non-Working LED Wall Light？

LED wall light does not light up how to do?
1. Cut off the power supply and unscrew the ceiling light cover.
2. Observe whether there is any abnormality inside the lamp, such as burning black, loose, etc.. If so, replace the base plate all together.
3. If everything looks normal, then the power supply is generally bad. Buy a power supply of the same type and replace it on the OK.

LED wall lamp broken how to repair?
1.LED lights do not light up the reason is no more than two cases: First, the LED leakage current is too large caused by the PN junction failure, so that the LED lights do not light up, this situation does not generally affect the other LED light; Second, the internal connection of the LED lights lead disconnection, resulting in no current through the LED and produce dead lights.

2. overhaul led lamp can first use a zigzag screwdriver carefully along the LED bulb lamp lamp head metal screw and bulb lamp body plastic joint pry open, as far as possible to keep intact, in order to repair the restoration of the aftermath.After repairing, it is necessary to keep it intact. After opening, first check the electronic components of the conversion part, if there is no problem, and then power on to check the output voltage, if the 2W LED bulb light, measured with a multimeter output DC voltage of 105.5V, indicating that the failure in the LED light-emitting components.

3. If the LED bulb light-emitting components and power supply part of the disconnect, and then the plastic made of spherical bubble and its connection to the plastic body managed to separate. As this part is glued to the car, may not be able to complete its separation, will break the plastic made of bulbs, but even if the bad do not use it does not matter. Repair does not affect the light, just not pretty.

4. After repair, stuffed into the lamp head metal screw mouth as insulation with electricians commonly used green paper, round green paper is put into the body of the plastic LED light-emitting components and electronic components separated. So, how to find out specifically that group of light-emitting components are bad? Available mechanical multimeter resistance Ok block to find out the bad point. With a multimeter red and black pens in its LED light-emitting components at both ends to test, can be relative, cross and exchange red and black pens to try to test, until the measurement of the light-emitting points to light up until the light-emitting components of each light-emitting points are measured, with paper first draw each group of light-emitting components and the three light-emitting components in each group. Components and three light-emitting points in each group, and note down the non-light-emitting, in order to control the removal.