Featuring an industry-standard 2.1mm pin diameter, the Watson Pro 12V 2A Power Supply can be used to power most monitors, lights, hard drives, battery chargers, musical keyboards, and many other devices requiring up to 12 VDC, 2A of power. Designed with a 46" cable, it can easily be used in hard-to-reach places on set, in the studio, or in the home. Input: 100-240 VAC, 50/60 Hz Output: 12 VDC, 2 A Connector: Barrel Connector, 5 mm Outer Diameter, 2.1 mm Inner Diameter, Center Positive Plug Type: 2-Prong North American Cable Length: 46" / 117 cm Dimensions: 3.3 x 1.7 x 2.25" / 8.3 x 4.4 x 5.7 cm Weight: 3.8 oz / 109 g