Side-by-Side Equipment Comparison
Compare real power use, light spread, coverage, and prices to choose the best gear for your grow setup.
| Equipment Metric |
AC Infinity
AC Infinity CLOUDLINE A4, Quiet 4 Inch Inline Duct Fan
|
AC Infinity
AC Infinity CLOUDLINE H4, Quiet 4 Inch Inline Duct Fan IP 65 rated
|
|---|---|---|
| Price | $79.99 | $99 |
| Warranty | N/A | N/A |
| Availability | In Stock | In Stock |
| Rating | ★ 4.5 / 5 | ★ 4.5 / 5 |
| Brand | AC Infinity | AC Infinity |
| Model Name & Model Number | CLOUDLINE LITE A4 / AI-CLA4 | Model Name: CLOUDLINE H4; Model Number: AI-CLH4 |
| Included Components | Cord, Remote, Speed Controller, Wood and Machine mounting screws | Cord, IP65 Speed Controller, Machine and Wood Mounting Screws |
| Style or Fan Type | Inline Duct Fan | Cloudline H4 / Inline Duct Fan |
| Price ($) | $79.99 | $99.00 |
| Amazon Store Availability | In Stock | Out of Stock |
| Manufacturer Store Availability | N/A | N/A |
| Loved For | • Sturdy, high-quality build with a premium look • Exceptionally quiet operation on lower speeds • Powerful suction and airflow for versatile extraction • Easy installation and seamless integration • 10-speed controller for precise airflow adjustments | • Well-built, high-quality construction • Exceptionally quiet operation • IP65 waterproof rating, ideal for humid grow spaces • Powerful airflow and strong static pressure • Good pricing for features and quality • Air-tight, leak-preventing design |
| Dreaded For | • High speeds are significantly louder than expected • Advertised 29 dBA noise rating only applies to lowest settings, exceeding 70 dB on full blast | • Concerns over internal build quality and cheap capacitor circuit board design • Long-term durability risks, including potential burn-up within years • High price relative to long-term quality due to lack of competition |
| AI summary long text | • Robust, reliable, and powerful for extracting heat, smell, and fumes from grow tents, laser cutters, and 3D printers • Ultra-quiet and almost silent on lower speed levels • Mixed reviews on noise, with some noting it becomes quite loud at higher speeds contrary to the 29 dBA claim | • Good quality with exceptionally quiet and efficient operation • Highly recommended for high-humidity applications due to IP65 waterproof rating • Excellent static pressure and air volume without air leaks • Negative feedback notes long-term durability concerns and cheap electronic components |
| Power Source / Supply | AC | AC |
| Power / Wattage | 7.2 Watts | 18 Watts |
| Voltage | 120 volts | 100-240V AC |
| Air Flow Capacity | 165 CFM | 212 CFM |
| Duct Size | 4" | 4" |
| Noise Level | 29 dBA | 27 dBA |
| Motor Type | EC Motor | EC Motor PWM |
| Electric Fan Design | Exhaust Fan | Blower |
| Mixed Flow Design | Yes | Yes |
| Speed | 2800 RPM | N/A |
| Main Power Connector Type | N/A | N/A |
| Connector Type | N/A | UIS / AC Power Plug |
| Item Dimensions D x W x H | 6.9"D x 11.9"W x 7.4"H | 6.9"D x 11.9"W x 7.4"H |
| Size | 4-Inch | 4-Inch |
| Item Weight | N/A | N/A |
| Materials (Body and Blade Material) | Plastic (Body and Blade) | Plastic |
| Color | Black | Black / IP65 Speed Controller for H4 |
| Finish Type | N/A | Powder Coated |
| Bearing Type | Dual Ball Bearing | Dual Ball |
| IP Rating (Water/Dust Resistance) | N/A | IP65 |
| Mounting Type & Included Hardware (e.g., Ring Anchor) | Downrod Mount / Mounted (Included speed controller mounting screws and integrated mounting bracket) | Downrod Mount / Includes Controller Mounting Hardware (Screws) |
| Installation Type | Mounted | Permanent Installation |
| Number of Blades | 10 | N/A |
| Form Factor | N/A | N/A |
| Controller Type & Control Method | Wired 10-speed controller (Speed Controller), or app-controlled when connected to a compatible smart controller (sold separately) | Controller Type: 10-Speed Controller (PWM); Control Method: Touch |
| EC Motor with PWM-control | Yes | Yes |
| Number of Speeds / Number of Power Levels | 10 | 10 |
| Switch Type | Power Switch | Touch / Push Button |
| Standby Power Shutoff | High Efficiency | N/A |
| Smart Programming | Yes (Precise 10-Level Fan Speeds and supports advanced scheduling, climate triggers, and automation when paired with CONTROLLER 69 or later) | Precise 10-Level Fan Speeds / Backup memory |
| Special Features | Programmable, 10-speed PWM speed controller, mixed-flow design, dual ball bearings, backup memory | Programmable |
| Sustainability Features | Contains at least 50% recycled material | Contains at least 50% recycled material (Global Recycled Standard), Safer chemicals (made with chemicals safer for human health and the environment) |
| Recommended Uses / Room Type (Indoor/Outdoor) | Inline Duct Fan / Indoor | Recommended Uses: Inline Duct Fan / Air Circulation; Room Type: Indoor / Grow Tents, Mushroom Fruiting Chambers |
| Certificates / Specifications Met | Global Recycled Standard | Global Recycled Standard |
| Warranty & Support | N/A | N/A |
| Amazon Link | https://amzn.to/4fWisFV | https://amzn.to/4xsMGaK |
| Manufacture's Link | N/A | N/A |
| Last Updated (Date) | August 4, 2026 | August 4, 2026 |