We bought it and installed it on RC crawler vehicle and connected the battery power. It works great as it can be easily powered from 3V-5V. The video stream is great too. I installed it in a place where even a car crashes, it will not damage the lens. My only complaint is that after 2 weeks of use there is a faint black line appearing in the video stream which may be coming from inside the lens (there is no visible crack on the lens) as I have tried 2 different glasses and am still seeing the same line .