OverviewA high airflow fan kit to enable you to control the ventilation and air circulation for a wide range of DIY projects. Features an inline controller to set the fans speed to optimal airflow and noise levels. The kit includes both swivel brackets and wall-mounting hardware to fit various applications. Containing dual-ball bearings rated at 67,000 hours, the fans can be mounted in any direction. Each fan is constructed of heavy-duty aluminum with thermoplastic impeller. The complete kit includes one fan, two grilles, one power plug cord with inline speed controller, one swivel bracket set, and four wall-mounting screws with nuts. The cord length is 6 feet. The AC Infinity axial fan is UL recognized under certificate E503903, and also CE and RoHS certified.Speed ControllerEach kit features an controller located on the power cord, that can turn the fan and off, as well as control it?s speed. Easily turn the knob to optimize the fan?s airflow and noise levels for your application. Or simply use it respond to situations that may require additional air movement. Applications The fan kit is popular in a wide range of cooling, heating, and air circulation applications. This includes various DIY projects for doorways, room-to-room, fireplaces, stoves, and cabinets. The inclusion of both swivel bracket mounting and wall-mounting hardware makes the kit suitable for various applications.