30-Amp L14-30, 125V/250V, Indoor/Outdoor 4-Prong Generator Power, 2021 Model. Features | Strong housing ensures your receptacle stays sturdy and safe. Industrial strength box will accommodate a large plug. Unit closes completely when not in use. Design | Clamshell belt lamp flip cover is easy-to-open and close. Solid and durable construction designed to last. Easy to hook up to the generator, and disassemble. Quality | Corrosion-resistant iron case is heavy duty and has strong copper male inlet prongs. Simplify your generator task with this convenient power inlet box. Installation | This unit is installable indoors and outdoors, so you know it will meet all your generator needs. Pre-punched side and bottom knockouts are easy to remove for wire insertion. Specifications | 30-Amp 125/250-Volt. 4.13" x 6.10" x 4.13". NEMA L14-30P rated. ETL listed. Halotronics is an American company with easy-to-reach Customer Support.