【Pure Copper 6 AWG】Built with genuine 6 AWG (6-gauge) pure copper wire, this 50 amp extension cord delivers stable 12500W at 250V. Designed for high-draw equipment like generators, welders, RV chargers, and farm machinery. The thick copper core minimizes voltage drop over 50 feet, ensuring full power for your NEMA 6-50 outlet devices. 【ETL Certified & Weatherproof】Safety first – ETL listed to UL 62/817 standards. Overcurrent and overheat protection built in. The STW (Service Thermoplastic Weather-resistant) jacket withstands rain, sun, and extreme temps from -40°F to 140°F. Use it outdoors on construction sites, campgrounds, or backyards with your generator or welder. 【LED Indicator & Ergonomic Handle】The female NEMA 6-50R end has a bright LED power indicator – you instantly know when the circuit is live. The male NEMA 6-50P plug features an ergonomic handle for a secure, comfortable grip. No more yanking the cord; pull the handle to disconnect, reducing hand strain and plug damage. 【Heavy Duty for Welder & Generator】Specifically designed as a welder extension cord and generator power cord. Works with stick welders, MIG welders, plasma cutters, and portable generators. The 6 AWG copper core handles continuous 50 amp load. Slight warmth is normal; if too hot, check connections. 【Storage Bag & Cable Tie】Comes with a durable storage bag and reusable cable tie. Coil the 50 ft cord, secure it, and drop it in the bag. No tangles, no loose wires in your truck or garage. The bag protects against dust and moisture during transport.