I've gotten four of the LED transformers in various self-made lamps in use and am very satisfied. The devices deliver true DC, speaking at power on fast and light, with loads from approx 3W as well as to not. No chirping to hear no hum. (Test way I once connected only one LED that lights after switching off the 230V supply good 1 sec. After, the afterglow is therefore load-dependent) of a 4 transformers I have installed in a switch box that goes just like that. If you still need to accommodate terminals, it is quite narrow with a normal deep switch box. So you have the wires already just turn and take small terminals, but goes to the emergency.
