Efficient and Versatile Cleaning: The solar panel cleaning brush features an automatically rotating brush head with 150-300 rpm, a 640 mm wide nylon brush head for a larger cleaning area, and dry/wet modes to remove stubborn stains and dust, improving cleaning efficiency by 80% to save time and effort. Freely Adjustable Telescopic Extension: The aluminum alloy telescopic pole is available in three lengths (3.5 m, 5.5 m, 7.5 m) with an attachable anti-shrink design for stability, allowing access to roofs without a ladder, and a 360° rotating brush head cleans all gaps thoroughly. Automatic Water Spray and Water Saving: Equipped with a built-in micro-pump, a 7-8 m long brush head with a 45-60 l/h water spray system, and a high-pressure nozzle for streak-free cleaning, offering wet and dry modes to meet year-round cleaning needs while conserving water. Applicable in All Weather Conditions from -10°C to 40°C: Made of deformation and corrosion-resistant aluminum alloy and nylon brush wire, suitable for extreme environments, with a widened brush head and soft bristles that gently scrub without damaging surfaces, maintaining cleaning power over time. Versatile Use: Compatible with solar panels, window glass, RV windows, billboards, and more, featuring a telescopic pole divided into sections for easy storage, and includes water and power connection pipes for a comprehensive cleaning solution.