3 Prong 30Amp NEMA 10-30P male plug, 4 Prong 50Amp NEMA 6-50R female plug, 220 to 110 Welder adapter plug,30 AMP, maximum wattage 7500 wattThe Welder Adapter Cable is made with 100% copper wire which is more conductive for fast transfer to the RV. It adopts high-quality PVC sheath, which is dust-proof, wear-resistant and corrosion-resistant, and can be used for a long time.The length of the adapter is 1.5FT, which can be bent and twisted flexibly, High-quality material without worrying about deformationIt is very convenient to use the adapter to easily convert the supply, just plug in the plug to use, and the installation is very convenient.The 50 Amp of the welder adapter can help you direct to the equipment you need to charge in rain, flat ground, outages, jobsites and more.1.30 Amp NEMA 10-30P Male Plug2.50 Amp NEMA 6-50R Female Plug3. Current: 30 Amp4. Voltage: 125/250 volt5. : 3750/7500 watt6. Length: 18 Inch7. Easy-to-grip adapter for easy insertion and removal8, indoor/outdoor waterproof jacket9.100% copper wire and coated with a flame retardant and UV resistant PVC sleeve to protect against outdoor Elements, scuffs and tears.Voltage: AC100-240VPlug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.Material: Coppercolour: GreenPackage Contents:1 x 3 prong dryer cordOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.