Manufactured to 12/3 AWG (American Wire Gauge) specifications;Each of the three conductors contain 64 strands of 30 AWG 100% copper wire;Molded on Pro Lock connectors will not pull away from the cord body and offer extra water resistance;Automatic locking feature: insert male end into our Pro Lock connector, push together to lock & pull the collar down to unlock;We use high impact polycarbonate on both housing & collar on our Pro Lock connectors to guarantee hard service, extra-heavy duty use;Pro Lock Pull Strength: 80 Lbs. horizontally or vertically;Lighted Amber Power Check plug and indicates there is power running through the cord;Pro Lock green lighted CGM connector identifies ground continuity in the circuit;Our -58F (-50C) special cold-weather PVC jacket guarantees working flexibility in temperatures well below freezing;UL Listed and cUL Approved for Canada.