About This Automatic Opening and Closing of Windows: Our auto window vent opener uses solar energy,automatically opens and closes windows for greenhouse plants based on temperature，regulate temperature for indoor plants, flowers, vegetables, and fruits and so on. When the temperature exceeds 77°F/25°C , the window regulator will remain open. The temperature drops to 60°F /15°, the opener will close completely.Full Opening Temperaturen is 86°F/30°C. Durable and Anti-rust Automatic Greenhouse Window Opener:Automatic roof vent opener is crafted with premium aluminum alloy, our opener withstands bad greenhouse conditions (water, sun, and temperature swings). Greenhouse vent automatic opener reinforced structure supports up to 15 lbs(7 kg) with a maximum lift height of 18" (45 cm), ensuring reliable performance. Solar Heat Sensitive Auto Vent Opener Automatic Greenhouse Window Opener: Eliminate wiring hassles and energy costs! The built-in solar thermal drive requires no batteries or external power, making it perfect for remote greenhouses, sustainable farms, industrial window opening,personal family interest planting, and so on. The 13.4" (34 cm) cylinder ensures smooth, silent window adjustments day and night. Easy to Install and Use：Auto ventilation window opener is designed for DIY enthusiasts, it mounts effortlessly on plasci panels, wooden frames, or metal structures using basic tools. Ideal for roof vents, sidewalls, and hobby greenhouse models Adjust Indoor Ventilation Conditions: Solar automatic window opener optimizes plant health with automatic open and close window and temperature management. The gradual 17.72in/45cm venting height prevents sudden drafts while promoting air circulation—critical for preventing plants from being windless and dry during their growth process
