Features: Efficient Solar Ventilatparticlemail: The 8W photovoltaic panel strength the exhaust fan, providing green ventilation for greenhouses, shacks, chicken cooperatives, pet residences, additionally, ensuring unpolluted air distribution. Low Noise Nonbrush Motorebog: Developed with a nonbrush motor, supporter operates quietly, effectively relocating air through four.2 inch tube and 5.7 inch panel for optimal ventilation in various spaces. Easy Installation and Usemail: Arrives with sixteen.3FT cable for simple setup; just link the photovoltaic panel to supporter and position in sunlight for immediate, bother complimentary action. Sunlight Dependent Executparticlemail: The fan’s speed varies with sunlight intensity, delaying otherwise stopping in shadowy, and operates only during sunlight time lacking a constructed in battery. Face covering Power Efficient: Utilizing solar power, this structure proposals a aught release, pollution complimentary answer, ideal for green users seeking sustainable ventilation preferences. Specifications: Materials: silicon + aluminum alloy Output : 12V0.66A Line length: 497cm/16.3ft fan size: panel diameter 14.5cm thickness 5.4cm circular tube diameter 10.8cm speed: 3600r/min Package Includes: 1x 8W 1x round exhaust fan note: 1.Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!