LumenChoice(TM), LED Driver, Intended LED Usage LED Tubes, Number of Bulbs Supported 2, 120 to 277V AC Input Voltage, 26 to 34V DC Output Voltage, 0.64AAC Input Current, 0.72ADC Output Current, 36 W Input Power, 50W Power Output, 9 1/2 in Length, 1 5/16 in Width, 1 1/4 in Height, Case Form Factor Long, Standard Profile, Class 2