15W switching power supply,switch mode power supply,switching power supply 220v 5v, sigle out put :15W,selectable by switch INPUT: 110/220VAC±20%DC ... :±1%Efficiency:82% Adjustable:±10%AC input voltage range:85~132VAC/170~264VAC, selectable by switch 47~63Hz,240~370VDCAC inrush ... ,O/P-FG,I/P-FG :500VDC/100MΩworking temperature:-10°c-+50°cSafety standards: Design refer to GB4943,UL60950,EN60950EMC ...