Product Description 97mm x 33mm DC Blower, 110V 220V AC Powered Fan 9733 with Variable Speed Controller for DIY Cooling Ventilation Exhaust Features: 100% brand new and high quality 97mm blower is suitable for projects that requires cooling or ventilation with limited clearance; widely used in car seat, AV cabinet, stove, outdoor bbq and more. With 4v to 12v variable speed controller enables setting the fan’s speed to optimal noise and airflow levels for various applications and noise environments. The power adapter input 100V to 240V AC; enables the fan to be powered through an AC outlet; 7.7ft long power adapter enough meet your demands.