NEMA 6-20P to 14-50R EV USE Please turn down the charge rate to 24 amps. If you want to use your Tesla UMC charger with 14-50 adapter plug into 6-20 power outlet. This adapter cord can help you to do it. You can get the cord or adapter in your need. We focus on producing power cord and molding NEMA plug or connector. Most of generally use NEMA plugs and receptacles we can manufacture with PVC cable. We have UL approved for all PVC wire in UL 62 standard and also have UL or ETL approved for most of connectors in UL 817 standard. Please let us know your demand by send message to us. You can explain what plug with what receptacle and what length you want. Don t worry about the amount in your need even you only need special one that you can not find it in retail. Waiting is the only thing we hope you can understanding. Because It will take several weeks for producing in factory and the other 1~2 weeks for shipping from China to USA. Send your need to us by message now.