Electric solar panel cleaning brush features an automatic rotating brush head that removes stubborn stains, expanding the cleaning width to 60cm for up to 80% higher efficiency compared to manual wiping, which reduces manpower needs. Cordless design powered by a rechargeable battery includes a water outlet for switching between dry and wet cleaning modes, enabling quick decontamination or deep cleaning of every corner. Adjustable telescopic pole with a locking buckle structure offers three lengths up to 7.5m, allowing easy adaptation to solar panels of different heights for versatile use. Constructed from high-quality aluminum for strength and lightness, with PV fiber brushes made of high-density nylon filaments to ensure no damage to solar panels or other items during cleaning. Ideal for commercial large area cleaning, suitable for distributed factory roofs, power plants, outdoor windows, RV glass, store signs, and billboards, providing broad application versatility.