Designed for projects that requires cooling or ventilation; or as a replacement fan for various products. Includes a heavy-duty aluminum fan with power plug cord, two fan guards, and mounting screw set. UL-certified fan with dual-ball bearings has a lifespan of 67,000 hours. Can be mounted in any direction. High Speed: This model is designed to maximize airflow and can be too loud for some applications. 172 x 150 x 51 mm (6.8 x 5.9 x 2 in.) 100 to 120V AC Airflow: 211 CFM Noise: 52 dBA Speed: 2800 RPM