We've many various sorts of switches-
A huge sort of options in modular wall switches,
A one-way or single-pole switch is that the commonest one in use. ...
ONE-WAY (SINGLE-POLE) switch ,
TWO-WAY (DOUBLE-POLE) switch ,
DO NOT DISTURB SWITCH,
LIGHT DIMMER / STEPLESS REGULATOR,
BELL PUSH SWITCH.