Feature: 1. 270 rotatable design, angle adjustment made of reinforced nylon, one-time injection molded fiberglass can withstand 100 kg of torque 2. Aluminum alloy material is rust-proof, sturdy and lightweight 3. The brush is made of nylon material, hand-woven, 40 cm in diameter, extra large size, larger cleaning area and higher cleaning efficiency 4. Waterproof control box, from water pipes to wires, achieves comprehensive protection and adapts to various clean environments Specification: Name: Photovoltaic Cleaning Brush Speed: 320 rpm Torque: 5 kg cm² Power: 120 W Voltage: 16.8 V Power supply: 220V AC power supply Telescopic rod material: high-strength aluminum alloy Tube thickness: 1 mm Shrink length: 1.5 M Expanded length: 3.5 M Maximum pipe diameter: 36.5 mm Water supply mode: DC water pump Elevator: 15 M Maximum water flow: 180 L H Brush head diameter: 35 cm Bristle length: 6 cm Brush head material: Nylon wire Packing list: Telescopic rod 1 Solar panel cleaning brush 1 Hydropower control box 1 Power converter 1 Cleaning brush 1 Accessories package 1 Notice: 1. Due to different lighting effects and computer monitors, there may be color differences 2. The size is measured manually and there will be an error of 1-2 cm 3. Due to logistics issues, You will receive two packages with different arrival timesCUSTOMER SATISFACTION: Your needs are our pursuit. If you have any questions about the product, please feel to contact us, we will provide 24 hours feedback and solve it for you as soon as possible. WIDE APPLICATION: Suitable for high-altitude window cleaning, solar photovoltaic panel cleaning, cleaning cars, trucks, vans, caravans, windows, greenhouses, boats, decks, etc. CONVENIENT WATER SUPPLY: Our custom water supply pole is fun and easy to use, simply connect to any standard household water source, turn on the faucet and you can clean your windows in no time. Simple and straightforward to use, the water supply brush easily attaches to your garden faucet with a standard hose fitting. 1.5-3.5 M TELESCOPING POLE: The retractable handle can adjust the length of the broom while cleaning, making it perfect for reaching high places or hard-to-reach places. Plus, its ergonomic design makes it comfortable to hold for long periods of time, making it the tool for cleaning large surfaces. MATERIAL: High-density reinforced aluminum alloy, high hardness, not easy to rust, light weight. It can be used easily by senior citizens and women. The soft fiber brush is not easy to fluff and fits the photovoltaic panels without damaging them. Hidden water pipe design avoids entanglement and improves efficiency.