DOUBLE HEAD SOLAR PANEL CLEANING BRUSH: Features a double brush head design for a broader cleaning area and a more stable structure. Comes with a 7m, 8m, 9m adjustable telescopic rod and a 10m long cable, allowing you to adjust the length to fit your needs. LARGE DENSE BRUSH HEAD: Equipped with 2 large nylon brush heads hand-woven into discs. They will not shed bristles or damage photovoltaic panels, and the cleaning width reaches 70cm. INDUSTRIAL GRADE STRONG TELESCOPIC ROD: Made of industrial-grade thickened aluminum alloy with a 4cm diameter. Available in lengths of 7m, 8m, and 9m. The locking buckle structure ensures it won't bend or shake even when fully extended. EFFICIENCY AND ENERGY SAVING: Features a water-saving three-hole nozzle design, with water consumption of about 1.5-3L/m² and cleaning water consumption of about 9-15 tons/MW. The dual rotating brush heads provide a 70cm cleaning width, allowing one person to clean 500-750m² per hour. MULTI-PURPOSE: Lightweight design with the whole machine weighing about 14kg. Offers two modes—dry cleaning and water washing—that you can switch between. Suitable for large commercial cleaning environments without power supply, such as distributed factory roofs, large power plants, mountain solar power plants, intersections, and logistics warehouses.