LEDone 4inch Rotatable LED Residential Downlight Provides Amazing Advanced Dimming Capabilities Which Minimum To 5% With Widely Available Traditional Dimmers. It Designed To Easily Install Into Existing IC Or Non-IC Four-Inch Housings With 35 Degree Adjustable Angle And 12,24,38 Degree Beam Angle, Provides Higher Efficacy And Longer Life Than Compact Fluorescent Lamps.