Safe voltage product LED light energy-saving and environmental protection Pure color and soft beam Various types, with optional LED colors, cable color, bunchiness modle Meets UL/ROHS standards Indoor or outdoor use Easy to assemble and maintain Bulb colors: white/red/yellow/blue/green/pink/color-changing Wire colors: white, black, etc. Working voltage: 110/220V alternating current Transformer: insulate winding transformer or switch power transformer Power: 2-30W (decided by the quantity of LED) Long lasting life: 50,000 hours