... years 4) CE,UL,ROHS approval SMT-12020M001 series (waterproof Constant Voltage LED driver)we give at least 2 years warranty.Features ... LED illuminating lights, LED Neon, LED City Decoration, LED Lighting Advertising, LED Display, Safety Protection Apparatus, Telecommunications, Networks, Vehicle Lights, Controller Panels, etc. Waterproof Constant voltage LED ...