AC Infinity CLOUDLINE PRO 100mm Fan, 350 m³/h, 10 Modes + Speed Controller

The AC Infinity CLOUDLINE PRO S4 Quiet Inline 100 mm is an exceptionally quiet duct fan designed for efficient operation in environments with high humidity and dust levels. The unit offers programmable settings and precise speed control thanks to the included controller.

This model was created for effective and virtually silent air circulation in grow tents, grow boxes, and other spaces requiring efficient ventilation. The kit includes a wired controller with a 10-step speed scale, and the fan is compatible with the AC Infinity UIS controller system, enabling advanced control.

The EC motor, controlled by PWM (Pulse Width Modulation) technology, ensures energy-efficient and quiet operation with minimal heat generation. The mixed-flow design, utilizing impeller blades and hydrodynamic air rings, maintains high performance even under high flow resistance.

Technical specifications:
Duct diameter: 100 mm (4”)
Dimensions: 18.8 × 30.3 × 17.6 cm
Airflow: 205 CFM (approx. 350 m³/h)
Noise level: 28 dBA
Bearings: double ball bearings
Model: AI-CLS4

PRODUCT DESCRIPTION
This is a modern duct fan designed for quiet ventilation of grow rooms, supporting heating and cooling systems, and improving fresh air circulation. Thanks to its inline design and mixed-flow technology, it maintains a stable airflow even at high static pressure. The PWM-controlled EC motor ensures smooth, quiet, and efficient operation. The impeller module can be easily detached from the housing, simplifying cleaning and maintenance. The unit is compatible with UIS smart controllers, enabling operation automation based on time and environmental conditions.

PRECISE SPEED CONTROL
The included controller allows you to select one of 10 speed levels, enabling you to adjust the fan’s operation to specific conditions—both in terms of noise and performance. The PWM-controlled EC motor ensures stable operation even at very low speeds, without the humming typical of cheaper models. Additionally, the device remembers the last settings after power is disconnected.

QUIET AND EFFICIENT DESIGN
The fan utilizes a mixed-flow design with additional elements to enhance airflow, allowing for effective operation in installations with limited airflow. Dual ball bearings with a service life of up to 67,000 hours allow for installation in any position. The IP44 protection rating ensures resistance to dust and moisture, making the unit suitable for demanding conditions.

WIDE RANGE OF APPLICATIONS
This model is suitable for a wide range of applications—from cooling electronic equipment (rack cabinets, AV systems) to ventilating living spaces, as well as hydroponic systems, bathrooms, and attics. Thanks to its quiet operation and controllability, it is a versatile solution for various ventilation projects.

PRODUCT SPECIFICATIONS:
Brand: AC Infinity
Color: black
Type: duct fan (exhaust)
Power supply: wired
Noise level: 28 dB
Power: 21 W (max. 28 W)
Voltage: 100–240 V AC
Max. speed: 2800 RPM
Airflow: 350 m³/h
Power cord length: 244 cm
Cable length to controller: 305 cm
Number of blades: 10
Operating humidity range: 35–85%
Lifespan: up to 67,000 hours
Certifications: CE, ETL, RoHS

Dimensions – fan:
Duct: 100 mm (4")
Dimensions: 18.8 × 30.3 × 17.6 cm
Mounting hole spacing: 8.0 × 6.0 cm
Screw hole: Ø 0.5 cm

Dimensions – controller:
8.5 × 3.6 × 1.3 cm