How to fix the led light if it doesn't work?

1. First, turn off the power of the led lights at home. If a single series lamp bead is not lit, check whether its current limiting resistor is open. 2. If one light bulb in a group does not light up, just replace the faulty light bulb; If all the lights in the parallel group go out, it is necessary to find out whether the parallel nodes are disconnected and then carry out maintenance. 3. Therefore, if the LED lamp suddenly goes out during use, it is suggested to cut off the power supply and carry out maintenance. Science popularization of related knowledge: 1. At present, the common light sources of led lamps are white light and yellow light. White light has better lighting effect, and yellow light is mostly used as auxiliary light source. Generally speaking, the bedroom should choose yellow light, between 3000 K and 4000 K, which can not only create a warm atmosphere, but also help sleep. The study and studio are dominated by white light, which is suitable between 5000 K and 6000 K. For large spaces, such as the living room, it is suggested to use brighter led lights, which can effectively improve the lighting of the living room and play a good lighting role. It is suggested to use moderate brightness led lights for bedroom lighting, and add some auxiliary light sources, such as bedside lamps and wall lamps. 3. The product quality of 3.led lamp is directly related to its service life. Generally speaking, led lamps with good quality have long service life, good durability, stable light source and good lighting effect.