Electric solar panel cleaning brush with an automatic rotating brush head efficiently removes stubborn stains, expanding the cleaning width to 60cm for up to 80% higher efficiency compared to manual wiping, reducing labor needs. Connect directly to a power supply for continuous operation; includes a water outlet for switching between dry cleaning for quick decontamination and wet cleaning for deep cleaning of corners, offering versatile use. Telescopic pole with a locking buckle structure adjusts to three lengths: 3.5m, allowing easy adaptation to solar panels of varying heights for flexible cleaning. Constructed from high-quality aluminum for a balance of strength and lightness, ensuring durability; features high-density nylon filament brushes with moderate hardness to prevent damage to surfaces. Ideal for commercial large-area cleaning on factory roofs, power plants, and mountain solar installations; also suitable for outdoor windows, RV glass, store signs, and billboards in various scenarios.