R-Tech DC12V 5A UL-Listed Regulated Power Adapter (for CCTV Security Surveillance Cameras) Input Voltage Range: 100-240 VAC 60 Hz 1.5A Peak Output Power: 24 Watts, 30 watts surge Load Regulation: 3% over rated current: 0 - 5 Amp Output Voltage Nominal: 12 VDC. Current: 5000mA (5A) Output plug: 5.5 x 2.1 mm barrel connector