i bought this off ebay, functions identically to the reprapdiscount full graphical display but the layout is subtly different. this controller includes a backlight control button and a jumper pin to define if the backlight stays on permanently or not. also has a dial to control how long the backlight stays on (up to 30s i believe) since the layout is different i decided to create a model so i can alter an existing enclosure or make my own. what remains to be seen is how accurate my measurements were, i will take this out of WIP status once i make an enclosure from it!