E-Bike Handlebar On/Off Rocker Switch electric bike/ E scooter Compatible. Handlebar On/Off light switch or 250w switch for high power motors for E-bikes, scooter, ATVs. If speed controller has 2 blue 250w wires this will be compatible for the 250w restriction. controller Universal clamp mount fit for a 7/8"(22mm) handlebars. It can handle 12 volts up to 72 volts power source. This is a perfect switch for all auxiliary LED lights, headlights, fog lights for Electric-Bicycles, mountain bikes, Electric Scooters, ATVs, Mopeds. • 12-inch silicon-insulated wire. • Aluminum housing. Waterproof • Fits 7/8" handlebars • Rated for up to 72 Volts