Works as it should. Works with Lotus CT520D. This pigtail allows the user to weld by plugging the machine into a 110 outlet. The machine is designed for 220 to work at full power. But if you're in the field and don't have a 220, this pigtail will help you get in or out. Based in California, Lotos Technology does not have argon tanks, a 3-way ball valve, or a matching female connector. at this time. However, I did find a Grainger 30/50 amp, 220 volt wall outlet. The electrician delivers the house but sells it to the public. Your electronics department will get it to me in a day. The woman who answered the phone at Lotos customer service tried to help but I had to send her a photo of her own product so she could understand what I was asking about.