Features 1、Freshing and Clean: Great solution for small chicken coops, greenhouses, sheds, pet houses, and window exhausts in hot summers. The 10W solar panel dual fan kit expels hot airflow and pushes in cool airflow, effectively lowering indoor temperatures and keeping the wind refreshing. 2、High Airflow Volume: Equipped with a windproof and rainproof motor design with a lifespan exceeding 6 years, reaching a maximum speed of 3000RPM and an airflow volume of 200CFM. Recommended for greenhouses and chicken coops with a maximum space of 200 cubic feet (length x width x height), such as 8 x 5 x 5 inch. 3、Windproof and Rainproof Design: The fan motor section (PCB board, wiring, bearings) is coated to prevent short circuits or damage caused by rain. Suitable for outdoor use. 4、Safety Protective: Double fans come with double layer metal protective mesh guards to prevent injuries to small animals and maintain the normal operating of the fan blades. 5、Note: Fan speed is greatly affected by sunlight. When direct sunlight shines on the solar panel, the fan speed can get 3000 RPM. When sunlight is weak, the fan operates slowly or may even stop. The solar powered exhaust fan does not have a built in battery and can only operate during the day. Specifications Item Type: Solar Powered Exhaust Fan Kit Material: ABS Weight: Approx. 755.00g/26.63oz Maximum Power: 10W Open Circuit Voltage: 20V Maximum Power Voltage: 18V Short Circuit Current: 0.89A Maximum Power Current: 0.65A Output: DC Package List 1 x Solar Panel 2 x Fans 2 x Fan Covers 1 x User Manual 1 x Connecting Cable 8 x Screws 8 x Nuts 1 x Accessory