Adjustable Photovoltaic Panel Cleaning System:The Solar Panel Electric Cleaning Brush is designed to make your outdoor cleaning tasks easier and more efficient. Ideal for cleaning windows, RV glass, store signs, and billboards, this versatile tool is perfect for both residential and commercial use. **Key Features:** - **Innovative Design:** The electric hand-held roller brush is equipped with an aluminum alloy rod and nylon bristles, ensuring a thorough clean while being lightweight and easy to maneuver. - **Adjustable Cleaning Speed:** With a cleaning speed ranging from 150 to 300 RPM, you can customize the intensity based on the surface and cleaning requirements. - **Flexible Cleaning Options:** Whether you prefer dry cleaning or water washing, this brush adapts to meet your needs, making it suitable for various outdoor scenarios. - **Powerful Water Pump:** The built-in water pump has a lift capacity of 7-8 meters and a flow rate of 45-60 liters, aiding in effective cleaning without the hassle of manual scrubbing. **Available Sizes of Rods:** - ***3.5 m (11.4 ft):*** Adjustable from 1.32 m (4.3 ft) to 3.5 m (11.4 ft) in three sections. - ***5.5 m (18 ft):*** Adjustable from 1.60 m (5.2 ft) to 5.5 m (18 ft) in four sections. - ***7.5 m (24.6 ft):*** Adjustable from 1.66 m (5.4 ft) to 7.5 m (24.6 ft) in five sections. **Package Includes:** - 1 x Solar panel cleaning roller brush - 1 x rod - 1 x Water and electricity rail pipe - 1 x Water pump - 1 x Power converter **Usage