This outdoor 1 gang 1 way switch by Knightsbridge measures 90mm in height 90mm width and is 66mm deep. This switch features a blue LED activity light a circular rocker switch with the word "press" printed on and a variety of 20mm cable entry/exit ports to make wiring quick and efficient. It is IP66/IK06 rated ensuring suitability for outdoor use as well as being BS EN 60669-1 certified.