Cleaning robots have the highest cleaning efficiency (about 1450 ㎡/h, water consumption 0.4L/㎡) with anti-fall function, suitable for high-altitude cleaning. The 2024 new version can clean photovoltaic panels with an installation angle of up to 20°. Single-head robot (cleaning width 1.1m, applicable angle <20°) is for high-angle sloped roofs; double-head robot (cleaning width 1.4m, applicable angle <10°) is for large-area flat-laid power stations with gentle slopes and has better effect on stubborn stains. Robots are light and portable, with the same cleaning effect as double-head brushes for dust, water scale, bird droppings, slight oil pollution and rust.