Comprehensive Surge Protection -- The surge protective device designed for protecting LED driver. This surge protector uses common mode and differential mode to protect led from lightning surge damage. IP67 Waterproof & Flame-retardant -- This surge protective device enclosure is made of high quality flame retardant material, durable and safe for long-term use, protects LED power surge protection and your safety. Wide Application -- Our surge protective device is perfect for outdoor and indoor lighting, roadway, traffic, digital, wash wall, parking lot, flood, home, tunnel and street. Easy Installation -- The 3-wire surge protective device is very easy to connect to the circuits, simple wiring can be completed in a few minutes without complicated operation, saving a lot of time and energy. Certified -- This surge protective device is listed to UL , meeting applicable protection requirements. Max. discharge current:20kA, nominal discharge current: 10kA, nominal discharge voltage: 20kV, nominal voltage: 277Vac.