Led down light 1.Dimension: 3-8inch 2.LED quantity: 5-20W 3.Life Time:30-50K Hours ... frequency switching and energy saving 90% than conventional down lights. 2.Circuit Design: Constant current isolated circuit design with wide voltage ... .5%30000.8%40001.4%50002.2%60003.1%3,Application area Available for City,Buildings,Plaza,Hotel,Offices.,etc 3-8 inch (5 ...