Cooper Wiring Devices 95687WS Aspire Fluorescent Slide Dimmer, 8A 277V Only (Not for 120V), Single-Pole/3-Way, Compatible with Mark 10 Ballasts...

Replaces a standard switch and offers dimmer or fan control capabilities Digital circuitry provides aesthetically pleasing soft-on/ fade-off that extends bulb life Neutral is not required for installation of device Electrostatic discharge protection Installation speed enhancements include virtually unbreakable, ultrasonically welded top and back body, extra-long, extra-wide mounting straps and easy access ground screws