["Descriptions:\r\nThis 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.\r\n\r\nFeatures:\r\nSmall DC-DC voltage converter board with working indicator, easy to recognize the working status\r\nfor DC 1-5V input and 5V fixed voltage output, just provide 2 AA battery can obtain 5V 0.5A power supply\r\nHigh power conversion efficiency up to 96% save energy\r\n\r\nSpecifications:\r\nInput Voltage: for DC 1V-5V \r\nOutput Voltage: for Dc 5V \r\nOutput Current: 500mA \r\nMaximum Coversion Efficiency: 96% \r\nBoard Size: 25.22x17.55x5.85mm/0.99x0.69x0.23inch(LxWxH)\r\nQuantity: 1 Pc\r\nNote:\r\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nNo Retail Package\r\nPackage Contents:\r\n1 x for DC 1V-5V to 5V Voltage Regulator Module"]