The lumilife 12v 20w mains dimmable led driver is suitable for use with 12v led strip lights and other dimmable 12v leds this driver allows dimming of constant voltage led products using conventional triac dimmer switches such as trailing edge or leading edge which in the majority of cases means you dont have to have replace your dimmer switches output is 12v constant voltage voltage range 180 250vac built in pfc function protections short circuitover voltage fully isolated plastic case