The AC Infinity Cloudline Cloudcom T4 is the CLOUDLINE T4 smart inline duct fan, 100 mm (4″) and 384 m³/h · 107 L/s (226 CFM), paired with AC Infinity's new Cloudcom 6 controller in place of the Controller 69 Pro. The fan is the same CLOUDLINE T4 that has built up years of reviews on our site; the controller is the upgrade, with a 4.5″ full-colour touchscreen, six UIS ports, dual-band WiFi and optional Thread mesh for wireless devices. It is the fan for small spaces where you still want the environment managed rather than just ventilated, and the quietest fan in the CLOUDLINE range.
The Cloudcom 6 controller
The Cloudcom 6 replaces the Controller 69 Pro that used to ship with this fan. You still get temperature, humidity and VPD triggers, minimum speed, timers, cycles and schedules, and the fan still responds proportionally, ramping up as conditions drift and easing back as they recover. What changes is how much the controller can run and how you work with it. Programming is done on a 4.5″ (11.4 cm) full-colour touchscreen, and both an onboard sensor and the 3.65 m corded probe read temperature, humidity and VPD.
Six UIS ports cover this fan plus a clip fan, a light, a humidifier and more, each on its own program, and expansion hubs (sold separately) take it to 24 wired connections. Dual-band WiFi (2.4 and 5 GHz) connects it to the AC Infinity app for remote control, alerts, climate charts and the optional AI features AC Infinity are rolling out in the app. Built-in Thread mesh can run up to 100 wireless devices through Thread mesh receivers (sold separately), and that local mesh keeps running when your WiFi drops.
| Controller 69 Pro (previous) | Cloudcom 6 (this listing) | |
| UIS ports | 4 | 6 (24 with expansion hubs) |
| Display | Monochrome LCD, 90 × 35 mm | Full-colour 4.5″ touchscreen |
| Sensors | Corded probe | Onboard sensor plus corded probe |
| Connectivity | WiFi | Dual-band WiFi plus Thread mesh (up to 100 devices) |
| Power | Draws power through the fan | Own 12 V adapter (100 to 240 V input) |
Quiet, energy-efficient performance
The T4 uses a PWM-controlled EC motor, which is why it can idle at very low noise and why it draws so little power: 21 W average, 28 W maximum. That draw falls away steeply as you dial the speed back, because fan power scales with roughly the cube of speed. An AC-motor fan pulls close to its full rated wattage the moment it is switched on, whatever speed you set.
The mixed-flow design and 223 Pa static-pressure rating hold airflow up once you add a filter, a bend or two and some flexible duct. 223 Pa is the lowest rating in the CLOUDLINE range, so a 100 mm carbon filter on a long run will take a fair share of it. AC Infinity rate the dual ball bearings at 67,000 hours, the fan mounts horizontally or vertically, and the motor box detaches from the frame so you can clean the impeller without dismantling your ducting.
What people use it for
Home ventilation
- Bathroom, laundry and ensuite exhaust (ducted)
- Single-bay subfloor and underfloor extraction
- AV cabinets, racks and equipment cupboards
- Small workshops, studios and hobby rooms
- Humidity-triggered room-to-room transfer
Hydroponic ventilation
- Grow tents up to 0.9 × 0.9 m (3×3)
- Propagation and small hobby setups
- Automated VPD-based environment control
- Fresh-air intake on a larger tent
- Quiet setups where noise matters more than volume
Full specifications
| Manufacturer | AC Infinity Inc. |
| Product / model | CLOUDLINE T4 with Cloudcom 6 (Cloudline Cloudcom T4) / AI-CLT4-92Q |
| Duct diameter | 100 mm (4″) |
| Fan dimensions | 188 × 303 × 176 mm |
| Mounting-hole spacing | 80 × 60 mm |
| Screw-hole diameter | 5 mm |
| Maximum airflow | 384 m³/h · 107 L/s (226 CFM) |
| Maximum noise | 26 dBA |
| Static pressure | 223 Pa |
| Fan voltage / frequency | 240 V AC, 50 Hz (rated 100 to 240 V AC, 50/60 Hz) |
| Fan maximum / average power | 28 W / 21 W |
| Fan current | 0.4 A |
| Power connection | Australian three-pin plugs on the fan and the controller power adapter |
| Operating range | 0 to 60 °C / 35 to 85% RH |
| Ingress protection (fan) | IP44 |
| Mounting | Horizontal or vertical |
| Bearings | Dual ball, 67,000 hours (manufacturer rating) |
| Controller | Cloudcom 6 (CTR92Q) |
| Controller dimensions | 155 × 78 × 20 mm |
| Display | 4.5″ (11.4 cm) full-colour TFT, capacitive touch buttons |
| UIS ports | 6, expandable to 24 with expansion hubs (sold separately) |
| Sensors | Onboard sensor and corded probe, both reading temperature, humidity and VPD |
| Sensor-probe length | 3.65 m |
| Connectivity | Dual-band WiFi (2.4 and 5 GHz); Thread mesh, up to 100 devices with receivers (sold separately) |
| Controller power | 12 V DC, 24 W, via wall adapter (100 to 240 V AC input), 3.0 m cord |
| In the box | Fan unit, Cloudcom 6 controller, corded sensor probe, controller power adapter, two duct clamps, mounting hardware |
| Certifications | SAA · CE · ETL · RoHS (fan unit) |
| Manuals |
CLOUDLINE S & T series manual (PDF) Cloudcom 6 quick start guide (PDF) · Cloudcom programming guide |
FAQ
When will it arrive, and how do I pre-order?
Pre-orders are open now: add it to your cart and check out as normal. We estimate it will ship from Sydney from approximately 1 December 2026, subject to shipping delays. Supply of the first shipment is limited and units are allocated in order of purchase.
Is this the same fan as the T4 with the Controller 69 Pro?
Yes. The fan unit is the same CLOUDLINE T4: same motor, impeller, airflow, noise and static pressure. Only the controller in the box has changed. That is why the reviews on this page include those written for the T4 with the Controller 69 Pro; the fan they review is the fan you get.
Does the Cloudcom 6 need its own power point?
Yes. It runs from its own 12 V adapter, which plugs into a standard 240 V outlet with an Australian plug, and the fan has its own plug too. The upside is that the controller keeps running and monitoring even if a fan is unplugged or swapped, and it is not limited by one fan's power supply.
I already have a Controller AI+ or 69 Pro. Do I need this version?
Not for the fan. Any UIS controller runs it. Choose this version if you want the Cloudcom 6 itself: more ports, the touchscreen, an onboard sensor as well as the probe, and Thread mesh for wireless devices.
What size grow tent will a 100 mm fan handle?
For growing, the T4 suits tents up to 0.9 × 0.9 m (3×3). That is a grow-tent rating, not a room limit: it allows for a carbon filter, the heat from the lights and roughly one full air change every minute. For a 1.2 × 1.2 m (4×4) tent, or a carbon filter on more than a couple of metres of ducting, step up to the T6. A 4″ fan pinned at level 10 is louder and works harder than a 6″ fan at level 5, and still moves less air.
Will it pull properly with a carbon filter attached?
Within limits. The mixed-flow impeller holds pressure far better than a straight axial fan, but 223 Pa is the lowest static-pressure rating in the CLOUDLINE range and a 100 mm carbon filter is a real restriction. Keep the duct run short and straight and it handles odour control on a small space well. If filtration is the main job and the run is long, size up.
Can I use it for subfloor, attic or bathroom ventilation rather than growing?
Yes. The humidity trigger is why people choose it for those jobs: the fan runs when the space is damp and stays off when it is not, instead of running on a timer and guessing. The fan is IP44-rated and mounts horizontally or vertically. For bathroom exhaust, read the installation requirements above.
Most people use the 150 mm for a bathroom, or the 100 mm for smaller rooms such as ensuites and toilets. A larger fan is quieter for the same airflow because it can run slower. If you are unsure, send us the details and we will help.
How does the airflow compare with a ceiling or bathroom exhaust fan?
Installers rate exhaust fans in m³/h or L/s. The T4 moves up to 384 m³/h (107 L/s) at full speed. For comparison, the National Construction Code minimum for a bathroom or toilet is 25 L/s (90 m³/h), and 40 L/s (144 m³/h) for a kitchen or laundry, discharged outdoors rather than into the roof space. Real airflow drops with every metre of duct, bend and grille, which is where the 223 Pa static pressure rating matters. Check the requirements for your job with your installer.
Is this a genuine AC Infinity unit with Australian warranty?
Yes. Quick Bloom Lights is the official Australian importer and distributor for AC Infinity. This version ships set up for Australian 240 V power with Australian plugs, and the two-year warranty is handled here in Sydney, so there is no shipping units overseas or dealing with an offshore seller.
