Feature: 1. HIGHLY EFFICIENT HEAT DISSIPATION: Solar panel fan kit is equipped with two exhaust fans. It can effectively exhaust heat and odor from farms, chicken coops, pet toilet houses and other places to keep the air freshing. 2. SOLAR POWERED: Solar exhaust fan is powered by solar energy, no external power supply is needed, and it is energy saving and environmental as it absorbs sunlight and converts it into electricity for autonomous power supply. 3. SWITCH CONTROL: Solar exhaust fan is equipped with an on off button, which makes it easy to control the fan on off and adjust the fan's operating status as needed, realizing autonomous control. 4. MULTIFUNCTIONAL: 20W solar powered fan is also suitable for factory workshops, warehouses, greenhouses and other occasion that require heat dissipation and air exchange, providing a comfortable indoor environment. 5. EASY TO INSTALL AND CARRY: Solar powered dual fan is compact in size, easy to install and carry. It can be flexibly installed to various places to adapt to different space requirements and provide fast and effective cooling and ventilation solutions. Specification: Item Type: Solar Panel Fan Kit Material: ABS Solar Panel Size: Approx. 27.5 x 17cm / 10.8 x 6.7in Power: 20W Fan Size: Approx. 12 x 12cm / 4.7 x 4.7in Gross Weight: 551g/19.4oz. Package List: 2 x Exhaust Fan1 x Connection Cable1 x Switch1 x Solar Panel Note: 1. Please allow some error due to manual measurement.2. Without power storage.