The GCP1 is an ac port plug, power inlet, and waterproof electrical outlet with a 16-inch integrated outdoor extension cord that offers optimal flexibility and ease of installation. It works with any extension cord and requires no cable modifications or hand wiring. Its sleek, ultra-low-profile design not only works seamlessly on any application but includes a pressure-fit cap for a watertight seal. And it makes onboard battery charging ports, engine block heaters, or outdoor electrical outlets more accessible than ever before – giving you endless possibilities. Rated at 15-amps, 125-volts (14AWG), designed for use with all types of extension cords with Type-B plugs, and UL approved. Ideal for car, boat, marine, truck, trailer, pickup, RV, industrial and electrical applications.