DEWENWILS DIY Exhaust Fan 120mm with 2850 RPM and 90 CFM. The perfect assistant for your electrical cooling about refrigerator, compressor, air hockey table, AV cabinet, fireplace. 120VAC 18W 60Hz can handle heavy duty appliances, ideal for a variety of cooling or ventilation projects. Advanced waterproof technology and dual ball bearings makes long lifespan up to 50, 000 hours, saving your money and time.