Lightspeed Flip 8 Lighting Controller powered by Allen Bradley. Automated 4 ballast, 8 light switching unit, allows you to run 8 lights from 4 ballasts. Works with ballasts plugged into any voltage. Heavy duty Lightspeed construction, these units are built to last! Can be used with any 120V timer. Save money on ballasts and use 4 ballasts to run 8 lights! Optional 240V timer outlet.