10/4, 240V, L14-30,  25 ft. Generator Extension Cord For use with all generators equipped with L14-30 outlets 240V, 10/4 commercial duty cable Lighted end shows when power is on UL approved Connect up to 3 DEK Universal 10/4 Generator Extension Cords together and add the DEK Twistlock Adapter (Part # ACC01) for up to 75 ft. of reach without significant voltage drops