--- product_id: 420880345 title: "AC Infinity CLOUDLINE LITE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics" brand: "ac infinity" price: "1964 kr" currency: DKK in_stock: true reviews_count: 5 category: "Ac Infinity" url: https://www.desertcart.dk/products/420880345-ac-infinity-cloudline-lite-a4-quiet-4-inline-duct-fan store_origin: DK region: Denmark --- # 165 CFM airflow 29 dBA ultra-quiet 10-speed precision control AC Infinity CLOUDLINE LITE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics **Brand:** ac infinity **Price:** 1964 kr **Availability:** ✅ In Stock ## Summary > 💨 Elevate your airflow game with silent precision and smart control! ## Quick Answers - **What is this?** AC Infinity CLOUDLINE LITE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics by ac infinity - **How much does it cost?** 1964 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/420880345-ac-infinity-cloudline-lite-a4-quiet-4-inline-duct-fan) ## Best For - ac infinity enthusiasts ## Why This Product - Trusted ac infinity brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Whisper-Quiet Power:** Operates at a barely-there 29 dBA, perfect for focused work or stealthy grow rooms. - • **Built to Last & Adapt:** Dual ball bearings rated for 67,000 hours and IP44 dust/liquid resistance for rugged reliability. - • **Energy-Smart EC Motor:** Mixed-flow design with EC motor delivers max airflow at minimal energy use. - • **Plug & Play Versatility:** Compatible with CLOUDLINE smart controllers and easy maintenance with detachable motor box. - • **Tailored Airflow Control:** 10-speed wired controller lets you dial in the exact breeze your space demands. ## Overview The AC Infinity CLOUDLINE LITE A4 is a compact 4-inch inline duct fan engineered for whisper-quiet ventilation with 165 CFM airflow and ultra-low 29 dBA noise. Featuring a 10-speed wired controller and an energy-efficient EC motor, it excels in grow tents, hydroponics, AV cooling, and home ventilation. Durable dual ball bearings and IP44 rating ensure long-lasting, versatile performance, while compatibility with smart controllers offers seamless integration for modern environments. ## Description Designed to quietly ventilate tents, exhaust odors, transfer heating/cooling to rooms and cool AV cabinets. It features the same build quality and innovations as the CLOUDLINE series delivered in a value package. Includes a wired 10-speed fan controller; also compatible with all CLOUDLINE series smart controllers. Mixed-flow design combined with an EC powered motor for truly quiet and energy efficient performance. Duct size: 10 cm | Dimensions: 17.5 x 30.2 x 18.8 cm. | Airflow: 165 CFM | Noise: 29 dBA | Bearings: Double Ball Product Description: This inline fan system includes CLOUDLINE's core innovations and premium build quality to bring you a value package. Designed to quietly cool tents, rooms and closets, and provide ventilation in various air circulation and exhaust projects. With an in-line mixed flow design, the duct fan can maintain airflow even in high static pressure applications. The motor box containing the impeller and fan blades can be detached from the assembled frame for easy cleaning and maintenance. The complete kit includes an inline fan unit, a speed controller, UIS to 4-pin Molex dongle, installation manual and all necessary mounting hardware. Precise Speed Controller The speed controller allows you to adjust the duct fan speed to optimal noise and airflow levels for various environments. This inline fan is equipped with the same CLOUDLINE series EC motor that is precisely controlled by PWM (Pulse Width Modulation), allowing it to run smoothly at extremely low RPM speeds without generating motor noise. Ten speed options are available with power switch and backup memory. This model can be connected to the following smart controllers to share the same programming and power supply as other EC motor CLOUDLINE fans: B-Series Temperature Controller Temperature and Humidity Controller T Series Driver 67 Quiet and Energy Efficient Design The inline fan features a mixed-flow design using a stator blade and dual hydrodynamic wind circles. This gives it high static pressure, allowing it to deliver airflow even in applications where air movement is being restricted. The motor houses dual ball bearings rated at 67,000 hours, allowing the duct fan unit to be mounted in any direction. In addition, the inline fan is constructed with a plastic mounting base to decrease noise as a result of fan vibration. The unit is IP44 rated to be highly resistant to dust and liquids and performs well even in harsh environments. Applications This quiet inline fan system is found more in tents and hydroponic rooms to provide cooling and ventilation to plants. Its low noise level and advanced control functions make it suitable for bathroom and attic environments as well as for cooling AV equipment rooms, cabinets, racks and cabinets. Product ID Manufacturer AC Infinity Inc. Product Name CLOUDLINE A4 Product Model AI-CLA4 UPC Code 819137021747 Product Dimensions & Assembly - Fan Unit Duct Size, Overall Dimensions 7.5" x 11.9" x 7.9". (7.5" x 11.9" x 7.9") Hole to mounting hole distance 3.1" x 2.3". 1/4" Screw Hole Size Cable to driver length 72 inches. Plug in cord length 72 inches. Product dimensions and assembly (6 feet). Overall driver dimensions: 8.5 x 7.5 x 1.2 cm. (8.5 x 3.6 x 0.5 inches) Product Performance & Technical Specifications Total Airflow 165 CFM Total Noise 29 dBA Max Speed 2800 RPM Static Pressure 324 Pa Voltage 100-240V AC Frequency 50/60Hz Max Power 25W Average Power Use 18W Current 0.55A A A Type Plug United States (NEMA 1-15 Type A) Operating Humidity 35 to 85% RH Operating Temperature 32 to 140°F Input Protection IP 44 Fan Bearings Horizontal or Vertical Dual Ball Mounting Positions L10 Life Expectancy 67,000 Hours Fan Quality Approvals CE, RoHS CE Certification (Full Product) PDF RoHS Certified. (full product) PDF Product Manual Product Manual PDF Review: Just arrived not able to plug it in as it is a north American power cord.... Not Australian, no adaptor supplied boo hoo.... Review: Sehr leistungsfähiger Lüfter hat ordentlich Power ich verstehe, viele Rezessionen nicht so Kunden sagen im gesamten ist es zu laut. Denn dieses System ist eher leise, wenn man es auf Stufe 2 stellt. Auf maximaler stufe, ist es laut ja aber man muss bedenken der Lüfter muss ordentlich Luft wegdrücken meinem Kumpel reichen 2 Stufen locker dabei wird auch viel Luft abtransportiert. Das Verbauen hat auch super geklappt und die Kabel waren mehr als nur lang genug, sodass man alles sorgfältig verlegen kann. Eine klare Kaufempfehlung. ## Features - Designed to quietly ventilate grow tents, extract odors, transfer heating/cooling to rooms and cool AV cabinets. - It features the same build quality and innovations as the CLOUDLINE series delivered in a value package. - Includes a 10-speed wired fan controller; it is also compatible with all CLOUDLINE Series smart controllers. - Mixed-flow design combined with an EC powered motor for truly quiet and energy efficient performance. - Duct Size: 4" | Dimensions: 17.5 x 30.2 x 18.8 cm | Airflow: 165 CFM | Noise: 29 dBA | Bearings: double ball ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09FYK6Z3R | | Best Sellers Rank | #80,277 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #114 in Household Ventilation Fans | | Brand | AC Infinity | | Color | Black | | Compatible Models | Desktop | | Customer Reviews | 4.6 4.6 out of 5 stars (405) | | Date First Available | 9 October 2021 | | Item Weight | 2.2 Kilograms | | Material | Plastic | | Model Number | AI-CLA4 | | Noise Level | 29 Decibels | | Number of Speeds | 10 | | Power / Wattage | 7.2 watts | | Product Dimensions | 18.8 x 17.53 x 30.23 cm; 2.2 kg | | Special Features | Waterproof | | Voltage | 120 Volts | ## Product Details - **Brand:** AC Infinity - **Colour:** Black - **Electric fan design:** Exhaust Fan - **Mounting type:** Wall Mount - **Power source:** Corded Electric - **Product dimensions:** 17.5D x 18.8W x 30.2H centimeters - **Recommended uses for product:** Cooling - **Room type:** Bathroom - **Special features:** Waterproof - **Style:** Energy Efficient ## Images ![AC Infinity CLOUDLINE LITE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 1](https://m.media-amazon.com/images/I/51O8XVVM5tL.jpg) ## Available Options This product comes in different **Material Type, Size** options. ## Customer Reviews ### ⭐ Review *by R***D on 11 March 2022* Just arrived not able to plug it in as it is a north American power cord.... Not Australian, no adaptor supplied boo hoo.... ### ⭐⭐⭐⭐⭐ Review *by M***S on 16 June 2025* Sehr leistungsfähiger Lüfter hat ordentlich Power ich verstehe, viele Rezessionen nicht so Kunden sagen im gesamten ist es zu laut. Denn dieses System ist eher leise, wenn man es auf Stufe 2 stellt. Auf maximaler stufe, ist es laut ja aber man muss bedenken der Lüfter muss ordentlich Luft wegdrücken meinem Kumpel reichen 2 Stufen locker dabei wird auch viel Luft abtransportiert. Das Verbauen hat auch super geklappt und die Kabel waren mehr als nur lang genug, sodass man alles sorgfältig verlegen kann. Eine klare Kaufempfehlung. ### ⭐⭐⭐⭐⭐ Review *by L***S on 15 August 2024* Ich habe lange nach einem geeigneten Rohrventilator für mein Pflanzenzelt gesucht, und nach vielen Vergleichen fiel meine Wahl schließlich auf den AC Infinity Rohrventilator. Im Gegensatz zu den meisten Modellen, die ursprünglich für Räume wie Badezimmer konzipiert sind, erfüllt dieser Ventilator alle meine Anforderungen: Er ist kompakt, bietet eine einstellbare Geschwindigkeit und ist zudem erschwinglich. Besonders wichtig für mich war die Fähigkeit, hohe Luftfeuchtigkeit problemlos zu bewältigen, was dieser Ventilator perfekt meistert. Der Versand aus den USA verlief zunächst nicht reibungslos – der erste Zustellversuch scheiterte, da der Zoll das Gerät aus unerklärlichen Gründen beschlagnahmte. Die Rückerstattung war jedoch unkompliziert, und ich bestellte das Gerät erneut. Beim zweiten Versuch kam es nach etwa zwei Wochen Wartezeit sicher und gut verpackt bei mir an. Der Aufbau und die Integration in mein Rohrsystem und den Filter waren kinderleicht und selbsterklärend. Nach einem Monat im Einsatz kann ich sagen, dass dieser Rohrventilator meine Erwartungen übertroffen hat. Er sieht nicht nur stylisch aus, sondern liefert auch eine beeindruckende Leistung. Die 10 Geschwindigkeitsstufen ermöglichen eine präzise Regulierung von Luftfeuchtigkeit und Temperatur in meinem Pflanzenzelt, was für optimale Bedingungen sorgt. Siehe Video für eine Demonstration. Ein kleiner Wermutstropfen ist die Lautstärke des Ventilators ab Stufe 6, die für meinen Geschmack etwas hoch ist. Allerdings hatte ich zuvor einen schallgedämpften Ventilator, weshalb ich in diesem Punkt vielleicht etwas verwöhnt bin. Insgesamt bin ich äußerst zufrieden mit diesem Kauf und kann den AC Infinity Rohrventilator jedem empfehlen, der nach einer leistungsstarken und flexiblen Lösung für sein Pflanzenzelt sucht. ## Frequently Bought Together - AC Infinity CLOUDLINE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust - AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/420880345-ac-infinity-cloudline-lite-a4-quiet-4-inline-duct-fan](https://www.desertcart.dk/products/420880345-ac-infinity-cloudline-lite-a4-quiet-4-inline-duct-fan) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-23*