What fan size do I need for my grow tent?

For grow tents, match the fan's airflow (CFM or m³/h) to your tent volume. A common rule is to exchange the tent's air volume several times per minute. The AC Infinity CLOUDLINE PRO S4 offers 205 CFM, suitable for smaller to medium tents. Ensure the 4-inch duct diameter matches your filter and ducting for optimal performance.

Will this ventilation equipment work on Indian power?

Yes, this AC Infinity CLOUDLINE PRO S4 fan is rated for 220-240V, compatible with Indian mains power. It comes with a standard US plug, so you may need a Type C/D/M adapter. The EC motor ensures efficient operation and minimal heat generation.

How to use the AC Infinity CLOUDLINE PRO S4 fan?

Mount the fan inline with your ducting system, connecting the 4-inch ducts to both ends. Connect the power adapter and the speed controller. Use the 10-speed settings or UIS controller to adjust airflow and noise levels for optimal ventilation in your grow tent or AV closet.

What are the benefits of an EC motor fan?

EC (Electronically Commutated) motors are highly energy-efficient, consuming less power than traditional AC motors, which can lead to significant electricity savings over time. They also operate more quietly and generate less heat, contributing to a more stable environment for your plants or equipment.

How to choose an inline duct fan for odor control?

For effective odor control, pair your inline duct fan with a compatible activated carbon filter. The fan's CFM rating should be sufficient to pull air through the filter and exhaust it effectively. The AC Infinity CLOUDLINE PRO S4's 205 CFM and 4-inch duct size are suitable for smaller grow tents or enclosures when matched with an appropriate carbon filter.

What is the best electric fan for a laser engraver enclosure?

A quiet inline duct fan like the AC Infinity CLOUDLINE PRO S4 is excellent for laser engraver enclosures. It effectively exhausts fumes and burnt wood smell, preventing them from spreading. Ensure you use 4-inch ducting throughout the system for optimal airflow and connect it to a carbon filter if needed.

Are there side effects to using inline duct fans?

When used correctly for ventilation, inline duct fans like the AC Infinity CLOUDLINE PRO S4 have no direct side effects. Ensure proper installation to avoid electrical hazards and maintain the recommended airflow to prevent issues like heat buildup or stagnant air.

Can I use this fan daily for my hydroponics setup?

Yes, the AC Infinity CLOUDLINE PRO S4 is designed for continuous use. Its energy-efficient EC motor and durable dual ball bearings allow for daily operation in hydroponic setups, ensuring consistent air circulation and temperature control.

AC Infinity CLOUDLINE PRO S4 4" Duct Fan | Quiet EC Motor Ventilation for Grow Tents & AV Closets

Name: AC Infinity CLOUDLINE PRO S4 Inline Duct Fan 4” (100mm) | Quiet EC Motor Ventilation for Grow Tents & AV Closets
Brand: AC Infinity
SKU: rth0681
Price: 19158.00 INR
Availability: InStock

About this item

The AC Infinity CLOUDLINE PRO S4 is a smart 4-inch inline duct fan designed for efficient and quiet ventilation in India. It moves 205 CFM of air, making it ideal for grow tents, boosting heating and cooling to rooms, circulating fresh air, exhausting odors, and cooling AV closets. This fan features a PWM-controlled EC motor for quiet, energy-efficient performance and a 10-speed controller for precise airflow management.

Its mixed-flow design, combined with stator blades and hydrodynamic wind circles, ensures effective airflow even in high-resistance applications. The motor houses dual ball bearings rated for 67,000 hours, allowing versatile mounting. The unit is IP44 rated, resisting dust and liquids for reliable operation in various environments. The detachable motor box allows for easy cleaning and maintenance.

Imported from authorized US retailers and authorized brand partners, this fan offers superior performance compared to many local alternatives. All customs duties and GST are included in the price. Delivery is handled via ExpressBox, arriving within 13-15 days.

Key Features

Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming.
PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise.
Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas.
Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball

Why choose this product

Engineered for Performance & Efficiency

The AC Infinity CLOUDLINE PRO S4 utilizes a mixed-flow design with stator blades and hydrodynamic wind circles, enabling it to maintain strong airflow even in high-resistance ducting systems. Its PWM-controlled EC motor is exceptionally energy-efficient, running smoothly at low RPMs without generating significant heat or noise. This advanced engineering ensures reliable ventilation for your sensitive equipment or grow environments, outperforming many basic fans that struggle with static pressure.

Ideal for Grow Tents & AV Cooling

This fan is perfect for maintaining optimal air quality and temperature in hydroponic grow tents, boosting heating/cooling to rooms, and cooling AV equipment closets. It effectively exhausts odors and circulates fresh air. Skip this fan if you need a system for whole-house HVAC or require a fan specifically designed for high-pressure industrial ducting systems; consider a larger diameter fan for significantly larger spaces.

How to use

Securely mount the AC Infinity CLOUDLINE PRO S4 fan inline within your ducting system, ensuring it's oriented correctly for airflow direction. Use the included mounting hardware for horizontal or vertical installation. — Mount the Fan
Attach 4-inch diameter duct hoses to both the intake and exhaust ports of the fan. Use appropriate clamps to ensure a secure, airtight seal to prevent air leaks and maintain optimal airflow. — Connect Ducting
Plug the fan's power cord into the speed controller, and then plug the controller into a 220-240V Indian power outlet. Connect the controller to the fan motor using the provided cable. — Connect Controller & Power
Use the 10-speed settings on the controller to adjust the fan's speed and airflow to your desired level. For advanced control, connect to a UIS smart controller for programmable schedules and climate-based automation. — Set Airflow

Example scenarios

Typical situations where AC Infinity CLOUDLINE PRO S4 Inline Duct Fan 4” (100mm) | Quiet EC Motor Ventilation for Grow Tents & AV Closets helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

Maintaining optimal air quality in a small to medium hydroponic grow tent in India's humid climate.

How this product helps

The AC Infinity CLOUDLINE PRO S4's 205 CFM and 4-inch ducting effectively circulates air, preventing mold and ensuring plants receive fresh CO2. Its IP44 rating resists humidity, and the quiet operation is ideal for indoor use.

Scenario 2

Illustrative example

Where it helps

Cooling an AV equipment closet or small server rack in a hot Indian room.

How this product helps

This fan quietly exhausts heat buildup, preventing overheating of sensitive electronics. The 10-speed controller allows precise airflow adjustment to maintain optimal operating temperatures without excessive noise.

Technical specifications

Setup & usage

Airflow Capacity	205 CFM (5.8 m³/h)
Noise Level	28 dBA
Wattage	21 W
Voltage	220-240V (India compatible)
Power Source	AC
Controller Type	App Control, Button Control, Remote Control (UIS compatible)
Programmable Features	Dynamic climate & time-based programming via UIS controller
Cost per use	21W fan running 24/7 for 30 days: ₹639 per day (based on average Indian electricity rates)
Shelf life after opening	N/A (Durable Product)
Reapplication math	N/A (Durable Product)
Contraindications	Not suitable for whole-house HVAC systems; requires 4-inch ducting.
Allergens / common irritants	None

How we compare

Feature	AC Infinity CLOUDLINE	Others
Airflow (CFM)	205 CFM	Varies widely; many local fans offer lower CFM for similar price points or require larger duct sizes.
Motor Type & Efficiency	PWM EC Motor (Quiet, Energy-Efficient)	Often AC motors (Noisier, Less Efficient); EC options are rare and expensive.
Noise Level (dBA)	28 dBA	Typically 35-50+ dBA for comparable airflow, leading to significant noise.
Control & Programming	10-Speed Controller, UIS Smart Integration	Basic speed switches (low/medium/high) or no controller; limited smart features.
Build Quality & Durability	IP44 Rated, 67k Hour Dual Ball Bearings	Standard construction, shorter bearing life, less resistance to dust/moisture.

SKU	rth0681
GTIN	00819137020290
Brand	AC Infinity
Model Name	CLOUDLINE S4
Part Number	AI-CLS4
Duct Size	4 inches (100mm)
Dimensions	17.5 cm x 30.2 cm x 18.8 cm (6.9 x 11.9 x 7.4 in.)
Item Weight	2.61 kg (5.75 lb)
Material	Polycarbonate
Color	Pro Speed Controller for S4
Finish Type	Matte
Mounting Type	Versatile Mounting (Horizontal or Vertical)
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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AC Infinity CLOUDLINE PRO S4 Inline Duct Fan 4” (100mm) | Quiet EC Motor Ventilation for Grow Tents & AV Closets

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About this item

Key Features

Why choose this product

How to use

Example scenarios

Technical specifications

Setup & usage

How we compare

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