... ,UL,TUV ,GS high service ,high quanlity,OEM service compatible product :LED dimmer Features:1.LED Built-in Drive Power Supply 2.certification ... height, adapting LED dimmer7.Open circuit protection, short circuit protection8. High reliability and long life design ,long life span , 2 years ... rate2%product size54X37X22mmproduct certificationCE,UL,TUV ,GS 9-12W drive power supply (adjustable light)