The Gustafson RV Puck Light, 5" Surface Mount with 18 LEDs at 4 Watts # 277-000341 is a 12V light that is installed in a circuit either singularly or in multiples. The circuit will require a switch and is compatible with a dimmer switch.
However, we do have the LED RV Interior light with a built-in switch and 36 Diodes that is also a surface mount # 3375625337. This is a 5-1/8" light, which is so close to a 5". view full answer...