Prevent unwanted disconnects from electrical arcing and loss of power with this 12/3 SJTW extension cord"s revolutionary, patented locking connector. With 50 ft. of cable to extend around the jobsite, standard cords connect securely and withstand a pull strength of 80 lbs. vertically or horizontally. For added safety, a built in power indicator light shows power going through the cord, and a continuous ground monitoring (CGM) light indicates that the cord and circuit are safely grounded. The cord's cold weather jacket rating at -58°F ensures you have the flexibility to work in temperatures well below freezing.