DC DC Boost Step UP Converter 3.3-5V

From the shop's description

Input voltage: 0.9V ~ 5V Output voltage: 5V Output Current: 500mA PCB size: 25*18mm 1. input any DC voltage of 0.9V ~ 5V, output 5V DC voltage is stable, the input to the output current of 500 ~ 600MA with two AA batteries, a single AA battery power supply output current 200~300MA about for mobile phones camera, single-chip, digital products supply. 2. with USB female versatile 3, high conversion efficiency, up to 96% 4. ultra-small size, installed in a variety of small equipment 5. with working lights