12 Volt Power Supply - 7 Amp UL Listed (12V 7A DC) Adapter UL Listed 12 Volt 7 Amp DC Power Supply Adapter (84 Watts) High quality power adapter Input:100/240 Volts AC 50-60 Hz. Output: 12V DC 7 Amp UL Listed (12V, 7A) Connector Size: 5.5mm (Outside barrel) x 2.5mm (Inside Barrel). Center: Positive. UL/CE Listed Power Supplies with 2 Year Warranty