A Solar Fan is a self-contained ventilation device that converts sunlight into airflow without drawing power from the grid. For homeowners, greenhouse operators, RV owners, livestock barn managers, and off-grid cabin users, this technology solves two problems at once: excess heat and rising energy costs. The FOSSIL brand has spent more than two decades refining solar-powered ventilation products, and today the FOSSIL Solar Fan lineup delivers reliable airflow, durable construction, and intelligent battery management in a compact package. Whether you need to cool a stuffy attic, circulate air in a greenhouse, or vent a shed during the hottest months, a properly sized solar fan can reduce indoor temperatures by 10 to 20 degrees Fahrenheit while consuming zero utility electricity. Our Solar Fan series includes products such as Rechargeable Solar Air Cooler, DC 12V Air Cooler, and others.
The FOSSIL Solar Fan series is designed for continuous operation in demanding environments. Each unit integrates a high-efficiency photovoltaic panel, a brushless DC motor, and a deep-cycle battery system. Unlike cheap plastic imports that fail after one season, FOSSIL solar fans use marine-grade aluminum frames, tempered glass panels, and sealed bearings. The result is a product that withstands rain, dust, salt spray, and temperature swings from -4°F to 140°F (-20°C to 60°C).
The product line is divided into three core models: the FOSSIL SF-100, SF-200, and SF-300. Each model targets a specific air volume requirement, from small storage sheds to large greenhouses and industrial enclosures. All models share the same core engineering: an MPPT charge controller, low-voltage cutoff protection, and a direct solar bypass mode that runs the fan at variable speed based on sunlight intensity.
