The On/Off switch for the Razor Power Core E90 (Versions 1-2+) is the right replacement for a faulty rocker switch. This switch has three 1/4" terminal connections on the backside housing and it has a back-lit illumination to indicate when it is in the On mode. In addition to the Razor Power Core E90, this handy little illuminated rocker switch is perfect for a host other uses. Compatibility Razor Power Core E90