Safely run your generator with this DEK Universal 10/4, L14-30, commercial grade 25 ft. generator extension cord. Connect three (3) 25 ft extension cords together (male and female L14-30 connectors) for up to 75 ft. Lighted end shows when the power is on. Ideal for use with the 10/4 240V Y Adapter (part # ACC01). Highly recommended to reduce harmful voltage drops over standard 120V extension cords.