【Male Plug】50 Amp 240 Volt, NEMA 6-50P for welder plug. it is easy to switch power in your garage, NOT fit for 120V device!!! 【Female Connector】50 Amp NEMA 14-50R 125/250 Volt compatible with Tesla and other EV charging system, and it is not applicable to RV 【Convenience】This 3 prong to 4 prong power adatper is Perfectly suit for a 6-50 outlet, Convenience to charge your EV/Tesla from your welder 220V Outlet 【Heavy Duty】Molded plug, copper wiring coated, prevents the cable from overheating due to prolonged use. Heavy-duty flame retardant, UV-resistant, 3/6 gauge STW indoor/outdoor water resistant jacket 【GRIP DESIGN】This EV adapter cord by LAZMUMI 180 Degree Bent Design with a Grip Handle, Easily and safely to plug in and plug out LAZMUMI NEMA 6-50P to 14-50R EV Charger Adapter Extension Cord, Heavy Duty STW 6AWG, 50 Amp 250V 3Prong Welder Plug to 4Prong Generator EV Connector, for Tesla and Other EV Level 2 Charging