Description:10W Monocrystalline Solar Panels: Solar panels are sustainable and durable. Designed for sloping tiled roofs our vents use solar energy to draw excess heat moisture and moisture away from the attic promoting healthy air circulation in the space.Durable and Quiet: Designed to be waterproof this exhaust fan withstands harsh weather. The exhaust fan runs quietly and vibration-free. The vent is hail resistant and able to operate in low light conditions and is a major alternative to wind turbines.Unique Shape: Ideal for areas with extreme weather conditions this exhaust fan has a unique shape that blocks wind rain and snow and a tilting hood deflects flowing rainwater.Large Cooling Space: Innovative solar vents with large ventilation area and large heat dissipation space. The product can be exhausted from dawn to dusk and as a regular passive exhaust after sunset.Easy Installation: This exhaust fan is easy to install and can bring healthy air into your home in minutes! Thanks to ball bearings and a UV-freeze-proof structure this vent will work properly for years to come.Specifications:Size: 38*19*5cmWeight: 0.5kgSolar battery material: High-efficiency monocrystalline siliconSolar panel power: 10WSolar panel working voltage: 12VSolar panel size: 360*180*3mmOutput port: DC5521Cable length: 150cmFan power: 3WFan air volume: 43.4CFMFan size: 12*12*2.5cmFan speed: 2200(r/min)Notes:Please allow 1-2 cm error due to manual measurement. includes: 1 *Solar Powered Ventilating Fan"