Enhance the climate control of your greenhouse with this durable and efficient Greenhouse Winder Opener Cylinder, designed to maintain the optimal growing temperature automatically. Crafted from quality materials, this non-electric vent opener harnesses solar energy to regulate greenhouse vents, opening or closing them in response to temperature changes between 15°C and 25°C (60°F to 77°F). This innovative design helps prevent overheating, ensuring a stable environment for your plants without the need for manual adjustment or electricity. Key Features: · Durable Construction: Made from high-quality materials for long-lasting use and reliable performance in your greenhouse. · Automatic Temperature Control: Responds to temperature fluctuations by opening or closing vents, maintaining the ideal growing climate and preventing overheating. · Solar-Powered Operation: Completely non-electric, utilizing solar energy to function efficiently and sustainably. · Ideal for Greenhouse Windows: Specifically designed to fit and operate greenhouse vents, enhancing ventilation management. · Temperature Range: Operates effectively within a temperature range of 15°C to 25°C (60°F to 77°F), ensuring precise climate control. · Lightweight and Compact: Weighing approximately 107g, it is easy to install and unobtrusive. Important Usage Notes: This Greenhouse Winder Opener Cylinder requires refrigeration before use to function properly. Avoid using it in environments where temperatures exceed 50°C (122°F). Do not dismantle the cylinder to ensure safety and performance. Specifications: · Item Type: Greenhouse Winder Opener Cylinder · Temperature Range: 15°C - 25°C (60°F - 77°F) · Weight: Approx. 107g Package Includes: · 1 x Greenhouse Winder Opener Cylinder This greenhouse vent opener is an eco-friendly and convenient solution for maintaining the best growing conditions in your greenhouse, helping your plants thrive with minimal effort. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-GONGQ trading