arduino PFM USB MODULE Power Supply Electronic Hobby Kit

nput voltage of 0.9V to 5V DC, the module gives a stable 5V DC output through its USB socket. Using two AA batteries we can expect an output current of 500 to 600mA, and a single AA battery gives output current about 200mA. The conversion efficiency is upto 96%. Applications: Single Cell Battery Operated Devices Single Cell (AA, AAA size) Phone Battery Charger Small size Solar Chargers for Cell phones Hand held electronics that operates on small re-chargeable or non re-chargeable batteries.