This a DC voltage booster module with DC 0.9-5V input and 5V DC fixed voltage constant output. Ultra mini size with USB port can be used to DIY mobile power bank or USB charger for your solar panel or 18650 li-ion battery.

Specifications:

Input Voltage: DC 0.9-5V

Output Voltage: DC 5V

Maximum Output Current: 600mA

Working Temperature: -40℃-85℃

Frequency: 96%

Module Size: 34 X 16.2mm/1.34 X 0.64inch(L*W)