... service ,high quanlity,OEM service compatible product :E27, E14,GU10 Features:1.LED Built-in Drive Power Supply 2.certification : ... output 320mA--600mA, high-precision constant current5.High efficiency, the highest efficiency up to 85%6.Low height, adapting ... conditions, low temperature, to ensure the machine's reliability and long service life.The product specification:(3-5)*1WLED bulb driverProduct ...