<p>A rocker switch is based on the back-and-forth action, where one side is raised while depressing the other. This leads to one side of the switch being on turning the other side off. The markings used to denote on and off are "1" and "0" respectively. The Honeywell 1TP1-7 rocker switch is used in a wide variety of applications including agricultural machinery, construction equipment, military and commercial aviation, marine applications and medical instrumentation.</p> <p>1TP1-7 Rocker Switch from Honeywell features a two and three-position push button action and comes in various button colors. This SPDT rocker switch is environmentally sealed, CE approved and has UL recognition and CSA certification.</p>