ecoCalm Solar Exhaust Fan for Greenhouse with Battery & Adjustable Thermostat | 2x25W Bifacial Panels + Quad 5.5-Inch Fans Kit

Overview

Meet the ecoCalm Solar Exhaust Fan for Greenhouse, a self-contained ventilation solution designed to help you manage heat, humidity, and air quality using clean solar power. With a built-in battery, intelligent switching, and an adjustable thermostat, this kit keeps working even when the sun shifts.

Smart power, flexible use

Powered by two 25W bifacial solar panels, the system charges an 8800mAh battery while running the fans. On bright days, the sun drives both cooling and energy storage. When daylight fades or clouds roll in, the intelligent controller seamlessly shifts to stored energy to maintain airflow.

• Battery life supports up to 10 hours after a full charge in sunlight
• Automatic mode adjusts to sunlight conditions for efficient operation

Adjustable temperature control

The battery box houses a smart thermostat that you can set to the temperature you prefer. When the ambient air crosses the threshold, the fans turn on or off to help maintain a comfortable microclimate for your plants and workspace.

Durable, weather-ready design

With IP44-rated waterproof blades and weatherproof plugs, the unit is built for outdoor greenhouse environments. The rugged housing and sealed connections help resist moisture and dust while delivering steady airflow.

Flexible installation for cross-ventilation

Four 5.5-inch fans, arranged on opposite sides, create cross-ventilation to accelerate air movement through spaces up to about 2540 cubic feet. Cables of different lengths let you tailor placement to your layout.

• Cross-ventilation reduces hotspots and supports uniform airflow
• Outdoor-ready design suits a range of greenhouse sizes

Notes: The performance depends on sun quality; cloudy days reduce charging efficiency. The system blends solar input with stored energy to maintain ventilation, offering a practical, energy-saving option for greenhouse climate control.