Pairs well with
The AC Infinity Cloudline Pro S is a mixed-flow inline duct fan built around a brushless EC motor — quieter, more efficient, and longer-lasting than standard AC fans. Available in 4", 6", and 8" sizes, it runs on a 10-speed wired controller with programmable temperature and humidity triggers, making it the backbone of any serious grow room ventilation setup. If you want hands-free climate control without a noisy fan killing your vibe at 2am, this is the one.
Specifications
- Match fan size to your tent: 4" suits tents up to 0.6x0.6m, 6" covers most standard 1.0x1.0m–1.2x1.2m tents, and 8" is for larger spaces running 1.5x1.5m and above.
- Set your temperature trigger 2–3°C above your ideal grow temperature so the fan ramps before conditions get uncomfortable for your plants.
- Use AC Infinity's speed 4–5 as a constant baseline with triggers set to ramp to 8–10 under peak conditions — this keeps airflow consistent without straining the motor on the low settings.
How to Use
Pairs Well With
Match your carbon filter diameter to your fan size. The Cloudline Pro S is the engine — the filter is what keeps your grow discreet.
Fan, Filter & Ducting KitsEverything matched and ready to go — fan, filter, and ducting in one kit so you are not hunting for compatible parts separately.
All AC Infinity ProductsBrowse the full AC Infinity range — controllers, clip fans, grow tents, and UIS ecosystem accessories that integrate with this fan.
Frequently Asked Questions
What size Cloudline Pro S do I need for my grow tent?
As a guide: the 4" suits tents up to 0.6x0.6m, the 6" covers most 1.0x1.0m to 1.2x1.2m tents, and the 8" is suited to 1.5x1.5m and larger. Always match your fan and carbon filter to the same diameter.
Does the Cloudline Pro S connect to Wi-Fi or an app?
No. The Pro S uses a wired controller only. If you want app control and Wi-Fi integration, the AC Infinity Cloudline T series or the CONTROLLER 69 Pro add that functionality. The Pro S is the wired-controller option in the Pro range.
Is the Cloudline Pro S quieter than standard AC fans?
Yes. The EC brushless motor runs significantly quieter than standard AC induction motors at comparable airflow speeds, particularly at the lower speed settings where it operates most efficiently.
Can I run the fan at a constant low speed as a baseline?
Yes. The 10-speed controller lets you set a minimum baseline speed that runs continuously, with temperature and humidity triggers programmed to ramp the fan higher when conditions require it.
Is this compatible with AC Infinity's UIS controller ecosystem?
Yes. The Cloudline Pro S is compatible with AC Infinity's UIS (Universal Integrated System) ecosystem, allowing integration with external controllers for expanded automation if you choose to upgrade later.
The Quiet One. The Smart One. The Right One.
AC Infinity Cloudline Pro S — EC motor performance with programmable climate control. Pick your size and sort your ventilation once and for all.
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