AC Infinity CLOUDLINE A4 4" Inline Exhaust Fan 165 CFM – Quiet EC Grow Tent Ventilation with 10-Speed Controller

The AC Infinity CLOUDLINE A4 4 inch Inline Exhaust Fan is a high-quality, energy-efficient ventilation solution for grow tents, indoor grow rooms, and ventilation systems where quiet operation and stable air exchange are essential. Thanks to its advanced EC motor with a mixed-flow design, this compact duct fan delivers powerful and efficient airflow while maintaining an exceptionally low noise level.

With an airflow of 165 CFM, a noise level of just 29 dBA, and a precise 10-speed controller, the CLOUDLINE A4 offers complete control over ventilation and air circulation. This creates a stable growing climate where temperature, humidity, and odor management remain better under control.

This 4-inch inline fan is particularly suitable for small to medium-sized grow tents where reliable ventilation is needed to create a healthy growing environment for plants from seedling to bloom.

Quiet and Efficient Ventilation for Grow Tents

Stable airflow is essential in any indoor growing environment. The AC Infinity CLOUDLINE A4 is designed to extract warm air, supply fresh air, and improve air circulation in a grow tent without producing disruptive noise.

Thanks to its efficient mixed-flow fan design, this fan combines the advantages of axial and centrifugal fans. This results in higher static pressure, better airflow, and more efficient ventilation in systems with carbon filters and air ducts.

The fan is ideal for applications such as:

• ventilation in grow tents
• hot air extraction
• air circulation in grow rooms
• ventilation systems with carbon filters
• hydroponic growing setups

Energy-Efficient EC Motor with Powerful Airflow

The CLOUDLINE A4 is equipped with a modern EC motor (Electronically Commutated Motor) known for its energy efficiency, long lifespan, and stable performance.

Advantages of the EC motor:

• more efficient energy consumption
• stable airflow with low noise production
• longer lifespan than traditional AC motors
• precise speed control

With a maximum airflow of 165 CFM, this fan offers sufficient capacity for ventilating small to medium-sized grow tents.

10-Speed Controller for Precise Ventilation Control

The included 10-speed wired controller allows for easy adjustment of the fan speed to the needs of the growing environment. This enables precise tuning of the airflow to factors such as temperature, humidity, and plant stage.

By reducing the fan speed when less ventilation is needed, noise levels can be further reduced while saving energy.

The fan is also compatible with AC Infinity smart controllers, including:

• CONTROLLER 69
• CONTROLLER 67

These smart controllers offer extensive automation possibilities for ventilation management.

Compact Design with Whisper-Quiet Operation

With a noise level of just 29 dBA, the CLOUDLINE A4 is among the quietest inline fans in its class. This makes it particularly suitable for use in homes, closets, or other spaces where noise reduction is important.

Its compact design makes installation easy in various ventilation systems, including:

• grow tents
• ventilation ducts
• indoor grow rooms
• hydroponic installations

The fan can be mounted in any direction, which offers additional flexibility when designing a ventilation system.

Durable Design with Long Lifespan

The fan is equipped with dual ball bearings that support a lifespan of up to 67,000 hours. This ensures long-term reliability and stable performance, even with continuous use.

Additionally, the IP44 protection offers resistance against dust and splashing water, making the fan suitable for use in humid growing environments.

The detachable design makes maintenance and cleaning easy, ensuring the performance of the ventilation system is maintained.

Key Features

• Quiet 4-inch inline exhaust fan for grow tents and ventilation systems
• Maximum airflow of 165 CFM for effective air exchange
• Whisper-quiet operation of only 29 dBA
• Energy-efficient EC motor with PWM control
• 10-speed controller for precise airflow control
• Compatible with AC Infinity smart controllers
• Dual ball bearings with a long lifespan (67,000 hours)
• IP44 protection against dust and splashing water
• Compact design for easy installation

Technical Specifications

• Model: AC Infinity CLOUDLINE A4
• Type: Inline exhaust fan / duct fan
• Duct diameter: 4 inch (100 mm)
• Airflow: 165 CFM
• Noise level: 29 dBA
• Motor: EC motor with PWM control
• Speed control: 10-speed wired controller
• Bearing type: Dual ball bearings (67,000 hour lifespan)
• Protection: IP44 (dust and splash-water resistant)
• Dimensions: 6.9 × 11.9 × 7.4 inches
• Mounting: Can be installed in any direction

Included in the Set

• AC Infinity CLOUDLINE A4 4" inline fan
• 10-speed wired controller
• Mounting frame
• User manual

Why Choose AC Infinity Ventilation

AC Infinity is globally renowned for its innovative ventilation systems for indoor growing environments. The CLOUDLINE series combines energy-efficient EC motors, quiet operation, and smart control technology, allowing growers to precisely manage their climate.

For grow tents where temperature, humidity, and air circulation are crucial, the CLOUDLINE A4 offers a reliable and efficient ventilation solution.

Why Buy from Amsterdam Grow Supplier

Amsterdam Grow Supplier offers a carefully selected assortment of professional growing equipment from top brands such as AC Infinity. With fast delivery, competitive prices, and expert advice, we help growers set up stable and efficient indoor growing environments.