Descriptions:This is a mini DC-DC voltage converter module supporting for DC 1-5V input and for DC 5V fixed voltage ouput with high conversion efficiency up to 96%. Just 2 AA battery can obtain 5V 0.5A power supply for your electronics devices for ideal for DIY 5V 0.5A power supply. Features:Small DC-DC voltage converter board with working indicator, easy to recognize the working statusfor DC 1-5V input and 5V fixed voltage output, just provide 2 AA battery can obtain 5V 0.5A power supplyHigh power conversion efficiency up to 96% save energy Specifications:Input Voltage: for DC 1V-5V Output Voltage: for Dc 5V Output Current: 500mA Maximum Coversion Efficiency: 96% Board Size: 25.22x17.55x5.85mm/0.99x0.69x0.23inch(LxWxH)Quantity: 1 Pc Note:Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bidDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youNo Retail PackagePackage Contents:1 x for DC 1V-5V to 5V Voltage Regulator Module