1. Constant Voltage design,Universal AC Input. 2. Protections: Short circuit/Over load/Over current. 3. Cooling by free air convection. 4. Low working temperature, long service life. 5. High safety performance. 6.Output Voltage: DC 12V 7.Input Voltage : AC 110/220 8.Power:60 Watts 9.Shell Material: Metal case / Aluminum case 10.packing list: 1 × Regulated Transformer