1. 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 reference

3. with indicator light

Electrical specification:

The input voltage: 2.0V ~ 5.0V
No load output voltage: 5.1V +/-0.1V
Conversion 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):1200ma

Note: if you need to recharge the iphone 5, input voltage must be above 3.0V.