What are the common glitches of led lights

The common minor faults of led lights can be repaired and eliminated by themselves, and they can be replaced by themselves if they are obviously damaged by water or short circuit. In this case, a shell is valuable. If the shell is expensive or the whole set is very ugly, such as a floodlight street lamp, you need to change the light source and driver, and change some sealant yourself. It is recommended to find this manufacturer to buy supporting facilities and take pictures of the size. Don't put it in when you buy the light source, especially don't buy it separately, don't make a small bargain!
If it is suddenly not bright or dark, but other circuits are intact, that is, other electrical appliances are fine. In this case, the light is usually its own nerve, which is broken. This situation is very common. Let's take down the light and analyze it slowly!
Take a simple LED bulb as an example. First open the lid and select the blade along the edge gap. After turning it on, see what driver the lamp is used for. Whether it is connected to the board on the light panel or the components welded on the light panel, that is, independent IC and DOB solutions, independent IC is a bit troublesome.
The first point of troubleshooting: first check whether the lamp beads are in good condition. The black spot in the middle of the lamp bead is basically bad. If there are only one or two bad ones, you can do it yourself. You can poke and weld a piece of iron wire. If it is much worse, replace it directly.