... service ,high quanlity,OEM service compatible product :LED dimmer Features:1.LED Built-in Drive Power Supply 2.certification : CE,UL,TUV ,GS3. ... the highest efficiency up to 85%6.Low height, adapting LED dimmer7.Open circuit protection, short circuit protection8. High reliability and ... adjust rate2%product size54X37X22mmproduct certificationCE,UL,TUV ,GS 9-12W drive power supply (adjustable light)