This 4 inch LED disk light is ideal for use in closets, corridors, hallways, offices, stairways and many other light commercial or residential settings. This fixture provides 64 lumens per watt with a high 80+ CRI for improved visual acuity and efficient performance. It features smooth dimming down to 10 percent on typical incandescent dimmer controls. The UL Wet Location listing makes this product a perfect solution for high humidity areas and bathroom showers found in long-term care facilities, as well as hotel guest rooms. For use on 120VAC power supplies.