220 V 3 Way Switch. Do you break both lines going to the light? The right one for you will depend upon the placement and.
Fit for ordinary light bulbs, not suitable for LED bulb or energy saving lamps. All the better if the switches dont have this "flap" contact style. Three-way switches allow for controlling a light fixture from two separate locations, these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room.
Three-way light switches control a light from two locations, such as from both ends of a staircase or hallway.
The wire connections do not have to be removed.
Do you break both lines going to the light? This scene is repeated in hundreds. maybe thousands of homes every evening. The upstairs is dark, and as she flips the switch.