Arista Extendable Cord Extend-A-Cord Power Center with 6 ft. Retractable Extension Cord Off-White (52-1000) Built-in retractable 6 ft. extension cord. Converts any standard 2 outlet receptacle to 4 outlets with surge protection. Plugs into standard outlet. Maximum Spike voltage - 6000V; maximum current - 4500a; maximum energy - 280 Joules; clamping voltage - 800V (L-N, L-G LED Indicator Clamping Voltage - 800V (L-N, L-G) Maximum Energy - 280 Joules Maximum Current - 4500A Maximum Spike Voltage - 6000V