Input voltage: 110~220V - Output voltage: 12V; Load current: 10A; Power: 120W; Safety high reliability (executive standard: GB4943); Excellent work performance: switching power supply has 5-10 seconds delay detection circuit design good to eliminate power electricity output moment to prevent the load from the impact of the high voltage (especially the LED light source can maximum limit to reduce working voltage mutation caused by the light decay). Protection function: short circuit overload over-voltage protection.Efficiency: 82%. Easy installation: hung up everywhere with less input output connecting wires.Power supply 2 years quality guarantee.