IP65 Waterproof 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.