Effortless Cleaning with Auto-Rotating Brush Heads: The solar panel cleaning tool features auto-rotating brush heads designed to effortlessly remove stubborn stains, enhancing cleaning efficiency by 80% compared to manual scrubbing. Its 65 cm cleaning width ensures wide coverage, significantly reducing labor and time. Versatile Cleaning Options with Dual Brush Heads: Equipped with two interchangeable brush heads, this tool supports both dry cleaning and water washing. The row brush excels in dust removal, while the loose brush is ideal for water washing, minimizing secondary pollution and splashing. Adjustable and Durable Telescopic Pole: The cleaning brush comes with a telescopic pole made from a blend of carbon fiber and fiberglass, offering adjustable length for versatility. Its lightweight plastic brush head and polyethylene bristles ensure safe cleaning without damaging solar panels or windows. Portable Power Solution with Long Battery Life: Includes a 220V to 24V DC power supply, lithium batteries, and a backpack for easy portability. With up to 4 hours of battery life, it's perfect for extended cleaning sessions without the need for constant recharging. Ideal for Large-Scale Cleaning Projects: The handheld cleaning device is not only efficient for standard cleaning tasks but also excels in large-area dry cleaning and moderately polluted environments, making it a versatile tool for various cleaning needs.