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.
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Got a neon sign that didn't include a power supply unless it was with disposable batteries... So had to get this. Works perfectly, just as pictured, good material. Arrived promptly.
I like this product because you can charge two batteries at the same time. Also, compared to the original Nikon chargers. It has a display which shows the progress of the charging on each batteries so you know approximately what the charge is on a given battery and how much longer it will take to charge.