... produce DC5.0V-1000mA usb AC/DC power adapter/switch power supply Specifications1.5V 1A AC/DC switch power supply 2. ... of our power adaptorWith short circuit, over-voltage, over-current , overload ,overheat protection.100% full-load burning testsHigh ... efficiency, low Power consumptionsoft-start current can reduce the AC input impact efficiencyCompetitive price with best quality , ...