Smart Temperature Control: This black greenhouse automatic window opener features single spring solar design that adjusts window opening Angles based on Mood temperature Solar powered operate requires Not electrical connection Sustainable Solar Solution: Powered entirely by solar energy, this opener reduces electricity dependence and carbon emissions An excellent Choose for environmentally awake users seeking sustainable gardening Solution that Adjust with green living principles Weather: Reliably operates in both extreme Hot Weather heat and winter cold to maintain proper greenhouse ventilation Solves manual opener limitations during severe weather, making it essential for year round growers Easy Installation Process: With its user friendly design, this window opener installs quickly without special tools Follow the included instructions for simple setup that automates your greenhouse Window within minutes, perfect for home users with limited technical skills Strong Iron Construction: Produced of high strength iron Component, this window opener durability and Erosion resistance compared to alternatives The robust construction withstands harsh environmental conditions, Manufacturer: NMFLAB