Features: _x000D_ This is a DC-DC boost converter module with working frequency of 350 kHz._x000D_ _x000D_ The input voltage is DC 1 V ~ 5 V, and output DC 5 V 2%._x000D_ _x000D_ The module has high efficiency up to 95%, usually can be 76%~93%. _x000D_ Ultra small size and light weight, it is convenient to use. _x000D_ _x000D_ Widely used for AA, AAA battery-powered devices, breadboard, small power motor, cameras, electric toys, model aircraft, LED lighting, electronic DIY kits, etc. _x000D_ _x000D_ _x000D_ Specification:_x000D_ Input voltage: DC 1~5V _x000D_ Output Voltage: DC 5V2% _x000D_ Efficiency: 95% (usually is 76%-93%)_x000D_ Low quiescent current: 13uA_x000D_ Size(Not including pin): 10.6*10.5*5.6mm / 0.42*0.41*0.22in _x000D_ Weight: 2g / 0.1oz (approx.) _x000D_ _x000D_ _x000D_ Package list:_x000D_ 1 * Module _x000D_ _x000D_ _x000D_ Note:_x000D_ This is a DC - DC voltage converter module, please pay attention when using:_x000D_ 1, The input voltage should not be higher than maximum input range;_x000D_ 2, The output power cannot be higher than the maximum load for a long time._x000D_ 3, The input power must be higher than output power, because of the power consumption of the module itself._x000D_ FAQ:_x000D_ Q: Why the output voltage is lower than the nominal voltage?_x000D_ A :Because the input power is too low.Use a multimeter to test the input voltage, the input voltage is very low at this time.