Description
🌬️ AC Infinity CLOUDLINE PRO S4 – 4” Inline Duct Fan with 10-Speed Controller
Silent Power. Smarter Ventilation. Built for Performance.
Take total control of your airflow with the CLOUDLINE PRO S4, AC Infinity’s next-gen 4” inline duct fan engineered for high-efficiency ventilation in grow tents, rooms, AV closets, and air-circulation projects. Featuring a high-precision EC motor, PWM technology, and an upgraded 10-speed controller, this fan offers ultra-quiet operation, exceptional performance in tight spaces, and complete speed control to suit your needs.
From hydroponics to home HVAC, this powerful inline fan is the perfect fusion of performance, silence, and reliability.
🌟 Top Features & Benefits
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Precision Airflow with 10-Speed Controller 🎚️
Customise your fan speed with a wired controller offering ten levels of airflow control, memory backup, and seamless operation. -
Quiet & Efficient EC Motor 🔇⚡
EC motor with PWM control ensures whisper-quiet performance (just 28 dBA!) with reduced energy consumption and less heat buildup. -
Advanced Mixed-Flow Design 🌪️
Built with a stator blade and hydrodynamic wind circles, it delivers strong airflow even in high-resistance setups like carbon filters and long ducting runs. -
Modular & Easy to Maintain 🛠️
The detachable motor box simplifies cleaning and maintenance, while dual ball bearings rated at 67,000 hours allow for flexible mounting. -
Smart Integration Ready 🤖
Fully compatible with the AC Infinity UIS™ ecosystem, including all smart controllers like Controller 67, 69, and the T/B-Series — ready for automation!
📐 Tech Specs at a Glance
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Duct Size: 4"
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Airflow: 205 CFM
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Noise Level: 28 dBA
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Max Speed: 2800 RPM
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Static Pressure: 223 Pa
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Max Power Draw: 28W
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Average Power: 21W
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Voltage: 100–240V AC
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Humidity Rating: 35–85% RH
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Ingress Protection: IP44
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Cord to Controller: 10 feet
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Mounting Options: Horizontal / Vertical
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Dimensions: 7.40 x 11.93 x 6.93 in
🔌 What’s Included
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1 x CLOUDLINE PRO S4 4” Inline Fan
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1 x 10-Speed Wired Controller
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1 x UIS to 4-Pin Adapter
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Mounting Hardware
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User Manual
✅ Perfect For:
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Hydroponic grow tents and rooms 🌱
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AV equipment cooling and server closets 🎛️
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Odour control and duct ventilation systems 🚿
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Heat exhaust in small rooms, attics, or cupboards 🧊
⚙️ Boost Your Environment with Next-Level Ventilation —
The CLOUDLINE PRO S4 is now available at Green Spirit Hydroponics!
| Feature / Model | A4 – Basic | S4 – Pro | T4 – Smart | H4 – Fungiculture |
|---|---|---|---|---|
| Airflow (CFM) | 205 CFM | 205 CFM | 205 CFM | 212 CFM |
| Noise Level | 28 dBA | 28 dBA | 28 dBA | 27 dBA |
| Static Pressure | 251 Pa | 251 Pa | 251 Pa | 324 Pa |
| Max Speed (RPM) | 2800 RPM | 2800 RPM | 2800 RPM | 3000 RPM |
| Speed Control | 10-Speed Dial | 10-Speed Dial | Smart/Auto (WiFi) | 10-Speed Dial |
| Controller Type | Basic Speed Dial | Advanced Speed Dial | CONTROLLER 69 PRO | Basic Speed Dial |
| Smart WiFi App Access | ❌ | ❌ | ✅ | ❌ |
| Humidity & VPD Monitoring | ❌ | ❌ | ✅ | ❌ |
| Custom Scheduling / Timers | ❌ | ❌ | ✅ | ❌ |
| EC Motor (PWM Controlled) | ✅ | ✅ | ✅ | ✅ |
| Mixed Flow Design | ✅ | ✅ | ✅ | ✅ |
| UIS™ Compatible | ✅ | ✅ | ✅ | ✅ |
| Ingress Protection Rating | IP44 | IP44 | IP44 | IP65 |
| Mounting Options | Horizontal / Vertical | Horizontal / Vertical | Horizontal / Vertical | Horizontal / Vertical |
| Fan Bearings | Dual Ball | Dual Ball | Dual Ball | Dual Ball |
| Lifespan | 67,000 Hours | 67,000 Hours | 67,000 Hours | 67,000 Hours |