Solar powered mobile surveillance tower, it has 4*345W solar panels, 8*150Ah batteries, 20ft telescopic mast, cameras can be installed on the top of the mast for construction monitoring, usually used in parking lots, construction sites, parks and other public places. Solar energy as a clean energy, without any other external power supply access, the solar energy is converted into electricity stored in the battery, to power the camera, or to power the lamp.