AC to DC 12V 33.4A Universal Regulated Switching Power Supply 400W for CCTV, Radio, Computer Project Input Rated Voltage : 90 to 130VAC or 170 to 264VAC Rated Output Power: 400W 12V 33.33A Size:200x98x49MM Smart device surge protection for Shortage Protection, Overload Protection, Over Voltage Protection IN-DOOR USE ONLY!