PROFESSIONAL PERFORMANCE: Compatible with most welders in the market.Rated at 15AMP, 250 volts,Features industrial NEMA 6-50P male type plug and 6-50R female type plug most commonly used for electric welder applications. HEAVY DUTY: Apply SJTW jacket, Waterproof and flame retardant power extension cord for welding is built strong against oil, moisture, water, rust, and abrasion. EXTEND WORKING RANGE: 12AWG Extension cord with unbreakable connectors allow you to easily pull around obstacles in your yard or the garage for added convenience. SAFE AND RELIABLE: ETL approved, Operating Range (recommended): -40 to 140; 3 prong; Color: Black. GREAT COMPATIBLE: Suitable for all the YesWelder welder & cutter under 250amp. It is compatible with a variety of brands of welders.