I have a few chargers on blue 16amp & 32amp plugs, one of them with a 10m tail on it for traveling, but mostly use the ABB Terra box that came with the car, I fitted it myself as I wanted a 32amp plug/socket between it and the consumer unit.
At the Chiang Mai house we have the wall box that came from MG, it needs unlocking with an RFID card every time you use it, again, there is a 32amp plug/socket between it and the consumer unit.