Available in single-output voltages of 5, 5.9, 9, 12, 15, and 24 Vdc, SWI6/12/18/24 have universal input voltage range of 90–264 Vac and meet US Department of Energy (DOE) average efficiency and no load power requirements. Protections for over voltage, over current, and short circuit are standard. While models with input blades for North American and Japanese applications offer UL/cUL and PSE safety approvals, models with European input blades come with CE mark.