Operates in Alternating and Direct current Able to operate in AC and DC simultaneously Overload protection and notification indicated on the front of the unit CSA and CE Approved This compact entry level power supply is perfect for low current experiments such as in beginner circuits and physics experiments. Safety will not be a concern as the unit is CSA and CE certified. Testing of grounding, high voltage insulation test, burn test, and leakage test. Product Features- 6 voltages: 1.5, 3, 4.5, 6,9, 12 Volts - Operates in Alternating and Direct current - Able to operate in AC and DC simultaneously - Overload protection and notification indicated on the front of the unit - CSA and CE Approved - Operates on 110V, 50/60Hz - Comes with plug