Features ???? HIGH QUALITY: Low-voltage lightning arrester housings are flame retardant, fireproof and safe to use. Mainly used to protect electrical systems and electrical load equipment from transient overvoltages during lightning strikes and overloads. ???? EASY TO INSTALL: The home surge protector can be disassembled and assembled, easy to plug and unplug, and the guide rail assembly is easy to operate. It does not take much time to complete the installation quickly. ???? APPLICATION: The surge protector is suitable for Class C and D lightning protection, and can be used for lightning equipotential linkage, fast response to lightning strikes, and discharge voltage reduction. Use can protect home appliances and your safety. ???? PARAMETERS: Number of poles of low-voltage lightning arrester: 2P, maximum discharge current: 20 KA, response time: ≤ 25 ns, rated voltage: 420 V, weight: about 227 g / 8 oz. ???? CUSTOMER SERVICE: We want to bring you the best product experience. If you have any pre-sales or post-sales questions, please feel free to contact us. We are committed to bringing our customers the best shopping experience and will solve your problems in a timely manner. Specification: Material:PC Flame retardant material Number of poles: 2P Response time: ≤25ns Rated voltage: 420V Maximum discharge current: 20KA Up: ≤1.5kv Weight: Approx.227g/8oz Package list: 1 x House Surge Protector Package List 1 x Function Generator 1 x USB Cable