Double head automatic outdoor cleaning tools with stable structure and large cleaning surface, lightweight for easy one-handed operation and operation during remote cleaning. Adjustable carbon fiber extension handle with locking structure for customizable length, with imported nylon wire for extra durability and no damage to photovoltaic panels. High Efficiency Design With a cleaning width of up to 70 cm, it allows one person to clean between 500 and 750 cubic meters per hour and save water consumption of 1.5 to 3 litres per square meter. Strong cleaning power with water powered double brush heads that rotate reverse to achieve balance, with high speed rotation and water spray to effectively remove dust and sticky dirt. Suitable for cleaning large areas in powerless environments such as factory roofs, large power plants and mountain solar power plants.