The standard AC fan is energy efficient  can be connected directly to a DC power source. Size of this fan is 172mm x 150mm x 51mm, as the big size , it can offer you 187.93 CFM big airfllow.

Ball bearing fan has a lifespan of 50,000 hours, 7 blades generate strong airflow to keep the cabinet stay cool. These fans can use for cooling cabinet refrigerator, stove (Fire place) BBQ, inflatables and other devices.

110/60Hz or 220/50Hz air ventilation cross flow fan are usually used for cooling and heat dissipation on sports equipment such as treadmills. Innovative design of the fan blades improves the air flow and facilitates a highly efficient ventilation.