10pcs DC-DC Converter Step Up USB Boost Module 2-5V to 5V 1200mA 1.2A for iphone1. Input 2V~5V DC voltage arbitrarily, can stable output 5V DC voltage, the input with two AA batteries can output current of 1000mA, single lithium battery power supply can output current of 1200mA, for mobile phone, camera, single chip microcomputer, digital power supply products.2. high conversion efficiency, up to 90%, on average about 85%, 3.7V up to 5V/1A typical application efficiency reached 87%, below measurement chart for your reference3. with indicator lightElectrical specification:The input voltage: 2.0V ~ 5.0VNo load output voltage: 5.1V +/-0.1VConversion efficiency up to 90%, average 85%Maximum output current: (can work for a long time):Vin>=2.0V):600ma(Vin>=2.5V):800ma(Vin>=3.0V):1000ma(Vin>=3.5V):1200maNote: if you need to recharge the iphone 5, input voltage must be above 3.0V.
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