Why is the light switch in the living room still on when it is turned off?

This problem is generally that the wire is reversed, that is, after you disconnect the switch, the live wire is still connected, but the neutral wire is disconnected. There are many LED lamps and lanterns that have this problem. Depending on where you bought it, this problem will not occur with good quality.

In most cases, the switch control is installed on the zero line, the switch is still connected in the closed state, and the lamp has always been in a live state, so the light will flash after the light is turned off, which is not only in the LED, but also in the case of ordinary fluorescent lamps. But the reason you said that the two-way switch is always live is not correct, and if the two-way switch is installed correctly (the control is installed in the live line), it will not be charged after the light is turned off. However, this situation is not a quality problem, the light will flash because the lamp is still charged, this you can knock down the main gate at home, if the light is still flashing, it is abnormal, under normal circumstances, ordinary household circuits, the zero line is not charged, as long as the switch control is installed on the live wire, the electricity is disconnected, the light is not energized, and it will naturally not be lit. >>>More

This means that there is a problem with the standby power circuit of the air conditioner. (Capacitor Burst).

1. If the floor is low, the biggest possibility is that the air is humid in spring, and the light is on after the switch is damp. >>>More

1. Poor contact.

2. The end of the thread is loose and ignited. >>>More