To build my own EVSE wallbox to charge my Outlander PHEV I ordered a tiny EVSE module from https://shop.gwl.eu/Electric-Cars/EVSE-kit-for-EV-charging-station-cable.html?cur=1 Which came in a kit, including 12V power supply and 16A relais. All components are minimal sized to fit in a charging connector. But for use at home I wanted a wallbox with a fixed cable, so I decided to use an old wallbox from a defective device. I installed it together with a remote controllable WiFi KWh-meter. To fix the tiny components in the box I designed this mounting frame which holds all three components tight fit in place.