I purchased this NEMA splitter to use my existing dryer outlet for charging my EV, and it works perfectly. It automatically switches between the dryer and the car charger without any input from me. The charging process is seamless, and the splitter barely gets warm even during extended use. The built-in display provides all the key details like voltage and current, which is a great feature. Highly recommend "Vevor" for anyone needing a smart charging solution!