| http://www.w3.org/ns/prov#value | - This unit has toggle switch at the back that allows you to operate it in 110V AC or 220V AC. Retails well over $200.If you need a power supply for any applications with reverse EMF, including DC motors, slot cars, LEDs, battery charging and equalizing, electroplating and anodizing, please see our updated model with over-voltage protection.Features & Specifications:Two level of control for both cur
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