Automatic greenhouse window opener that regulates ventilation as temperatures change, keeping growing conditions stable without manual intervention. Key benefits Prevents overheating by opening and closing vents automatically as temperature rises and falls. Runs on solar energy so no external power source or wiring is required. Maintains a consistent temperature range to support healthier plant growth and reduce heat stress. Simple mounting options let you clamp or screw the unit to greenhouse framing for quick installation and integration. Main features Temperature controlled operation: responds directly to ambient heat and adjusts ventilation accordingly. Solar powered, non electric design: converts sunlight to the movement needed to open and close vents, providing independent operation. Flexible installation: fits onto greenhouse windows or vents and secures with a clamp or screws, suitable for retrofit into existing structures. Low maintenance: automatic operation reduces the need for daily monitoring and manual adjustments. Suitable applications Home hobby greenhouse: keeps small glass or polycarbonate greenhouses ventilated during hot afternoons and closed at cooler times. Community garden or polytunnel: improves air circulation across planted beds without added wiring or power supplies. Small nursery or plant propagation area: protects seedlings and young plants from heat spikes by providing reliable vent control. What it solves Eliminates the need to manually open and close vents during temperature swings. Reduces plant stress from excessive heat by providing timely ventilation. Removes dependence on mains electricity for ventilation control in locations where power access is limited. Practical considerations Mounts to greenhouse frames using the provided clamp or by screwing into the frame, allowing flexible placement. Designed to work directly with greenhouse vents and windows; intended for use where temperature driven ventilation is required. Suitable for continuous outdoor use as part of standard greenhouse ventilation management. This automatic, solar powered window opener offers a straightforward way to maintain better growing conditions, save time, and improve plant resilience through reliable temperature based ventilation.