42W high-efficiency solar panel with lithium battery provides continuous day/night operation.Upgraded DC motor delivers 500 CFM airflow with reversible exhaust/intake modes. Features 16.4ft cord for flexible placement.Universal mounting kit adapts to any surface (walls/windows/roofs) without wiring. Ideal for coops, greenhouses, and outdoor structures requiring non-stop ventilation.All specifications based on laboratory testing under optimal conditionsZero electricity costs with solar power technologyReduces carbon footprint with clean energyUnder 35dB noise level for peaceful operation