Effortless Cleaning with Auto-Rotating Brush Heads: The solar panel cleaning brush features auto-rotating heads that effortlessly remove stubborn stains, enhancing cleaning efficiency by 80% compared to manual scrubbing. With a cleaning width of 65 cm, it significantly reduces labor and time. Versatile Brush Heads for All Cleaning Needs: Comes with two interchangeable brush heads—Row Brush for effective dry cleaning by lifting dust and Loose Brush for water washing, minimizing splashing and secondary pollution for a thorough clean. Adjustable and Durable Telescopic Pole: The telescopic pole, made from a blend of carbon fiber and fiberglass, offers adjustable length for versatility. The lightweight plastic brush head and polyethylene bristles ensure safe cleaning without damaging solar panels or windows. Portable Power Solution: Includes a 220V to 24V DC power supply, lithium batteries, and a backpack for easy portability. Enjoy up to 4 hours of battery life, making it ideal for extended cleaning sessions without the need for constant recharging. Optimized for Large Areas: The handheld cleaning device is perfect for large-scale dry cleaning and moderately polluted environments, offering the same efficiency as double-headed models but designed for broader coverage.