It works with standard UK domestic 3- pin sockets, so you can charge almost anywhere with a regular power outlet. The blue LED lights you see mean it's connected to power and ready/actively charging. It uses the standard Type 2 connector, which fits all BMW EV/PHEV models sold in the UK/Europe. It's designed to be portable, coming with the carry bag shown to keep the cable and control unit protected when not in use. V It's a great backup or primary charging option if you don't have a dedicated wallbox installed.