Features: High Efficiency Photovoltaic Panthe: The 8W photovoltaic panel strength the exhaust fan, providing a sustainable power answer for outdoor use in greenhouses, chicken cooperatives, and pet residences. Powerful Exhaust Fatherror: Developed with a nonbrush motor, this fan operates quietly and effectively, ensuring strong ventilation through its 4.7x4.7 inch square panel and 3.9 inch round tube. Easy Installatparticlemail: Hard wearing sixteen.3FT cable, simply link the photovoltaic panel to supporter and position in sunlight for immediate action. Solar Actparticlemail: The fan’s speed varies with sunlight intensity, delaying down otherwise stopping in low light; it operates only during sunlight time lacking a constructed in battery. Green Planumberebog: Utilizing solar power, this structure proposals aught emissions and pollution, making it a green option for sustainable enthusiasts. Specifications: Humanized planumberebog: Sports car grip plan is ergonomic, comfortable to use, more effort saving when used, and will not feel tired even should utilize for a forever. Package Includes: 1x 8W solar panel 1x 12cm exhaust fan note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.