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SNTOOM STF cordless lithium blower fan abandons wired power supply design, powered by interchangeable 21V A3 lithium battery pack, completely free from power socket and cable restrictions. Equipped with high-efficiency brushless DC motor, it delivers stable large airflow with low running noise.
This fan supports precise 12-speed manual adjustment plus 6 automatic natural wind modes, built-in LED night light for low-light environment operation. The tiltable metal support bracket allows flexible adjustment of wind direction. Rugged impact-resistant metal housing adapts to rough outdoor and construction working conditions. Three sizes (STF250 / STF300 / STF350) are available to meet different airflow demands. Widely used for construction site cooling, garage ventilation, outdoor camping, farm operation, workshop air circulation and emergency ventilation.