Features: This 15W solar power exhaust fan with 75mm to 110mm duct adapter delivers ventilation for greenhouses, pet houses, and workshops using renewable solar energy, featuring without emissions and quiet operations. Equipped with a brushless motor for quiet performances (under 40dB), the fan connects to standard PVC pipes via its 75mm intakes/110mm outlet design and includes 5.1m weatherproof cables for flexible solar panel placement. Ideal for homeowners, gardeners managing greenhouse airflows, and pet owners seeking odor control in kennels or chicken coops. Optimizes air circulations in sunlit spaces like attic window, garage workshops, bathroom vents, and agricultural structures requiring daytime ventilation without electrical wiring. The fan's sunlight responsive design automatically adjusts rotation speed for energy efficiency, operating exclusively during daylights hours without battery maintenance required. Specifications: Component:ABS,Metal Output voltages: 12V1.25A Interfaces: 5.5x2.1mm male Total wire length: 510cm/200.79'' Fan size: inner diameter of small round tube 75mm/2.95'', inner diameter of large round tube 110mm/4.33'', height 112mm/4.41'' Voltages: 12V0.3A, Speed: 3600r/min Package Includes: 1Piece 15W Solar Panel 1Piece Exhaust Fan note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.