Designed specifically for use with LED fixtures using 0-10V power supplies and 0-10V fluorescent ballasts. For use with Spectrum 440D & 441D lighting systems. Also works with Spectrum 240 & 241 Steam LED lights. Designed specifically for use with LED fixtures using 0-10V power supplies and 0-10V fluorescent ballasts Dual voltage 120V/277V; 50mAmps maximum sink current No power pack required for switching Provides single pole or 3-way lighting control when used with a 3-way switch Compatible with Decora Plus(TM) screwless and Decora standard designer wallplates (sold separately) Fluid slide movement allows fine adjustment of light level with minimal effort Captive wraparound slide bar remains securely attached Load Rating:1200VA-120V / 1500VA-277V Load Type:Electronic 0-10VDC Fluorescent and 0-10VDC Power Supply Switch Type:Single-Pole & 3-Way