Connect 4 conductors NEMA 14-50 50A RV and EV outlet to plug. Chose 10 foot, 15 foot, 25 foot, 50 foot, 75 foot, 100 foot for your camper or charger. NEMA 14-50 4-prongs recreational vehicle and electric vehicle extension cord 50 AMP 250 Volt. STW 6AWG/3C + 8AWG/1C stranded wire extension cord, support max 50 AMP loading, Max Rate 12500 Watt (250V). Molded with electroplate copper terminal in order to avoid surface oxidation effectively. Used STW cable for outdoor PVC jacket, Heavy-duty for Welder, 100% copper conductor inside. Lighted male and female connectors with rotatable connector puller. Universal to All Other Brands 14-50 4pole plug of equipment.