This plate switch1 gang 2 way plate switch is made from modern plastic and will fit any single back box. It has 1 switch (1 gang) and is used to control the lights in a room and is fitted adjacent to the door. The 2 way means that with 2 switches the same lights can be switched from 2 locations ( i.e 2 entry points or a staircase - hall and landing). These fittings can be used in many other domestic and commercial applications.