The live wire is directly connected to the lamp, which is the most common cause of light emission. Because after the switch controls the zero line, turning off the light only cuts off the power circuit, while the live wire is still connected to the light, and the light strip will glow. The solution is to reconnect the circuit and let the switch control the fire line. In another case, some lamps use electronic switches, such as infrared switches or voice-activated switches. This switch can't completely cut off the circuit, and it will glow when the lights are turned off.