Let's talk about the principle first: 1. When the live line is at L 1A, the load is at L 1B and the load is at L2B. Second, when the fire line is L2A, the load is turned off by L 1B light, and the load is turned on by L2B light.

When solving the problem, you said: 1. According to you, should the fire line take L 1A, and the load take the L2B light to go out? L2 will have no electricity, and there will be no electricity when L2 is removed. If there is electricity, it may be a ground or zero line loop or leakage, or it may be a switch indicator circuit. If it works properly, it can be ignored. Under normal circumstances, your L2 is dead whether it is disassembled or not. If there is electricity, it is only possible that the switch has an indicator light, or other lines are leaking to L2. Not at the scene, that's all I can analyze. 2.L2 has power, but sometimes it has power, either for a long time or 65V, so it is useless to change the line. 3, give up dual control, change the socket, just like the picture.