VIVOSUN AeroWave D4, 4” Grow Tent Clip Fan with Detachable Hook, 3-Speed Strong & Quiet Airflow, Adjustable Airflow Angle for Hydroponics, Circulation & Cooling, Black, 1-Pack

I don’t usually write reviews unless something really impresses me — and these fans absolutely do. I now own six of them and use them daily in my garden setup. They’re incredibly quiet, even at the highest speed, and the airflow is surprisingly strong and customizable. The fans are very well made, durable, and are nice and small so fit in my greenhouses perfectly. The adjustable hook is genius — I can direct airflow exactly where I need it. Between the multiple mounting options and the angle adjustments, I’ve been able to set them up in tight spots, on poles, and even in grow tent corners. They’ve made a huge difference in temperature control and airflow for my plants. The one-touch operation is simple, and I love that it remembers the last speed setting even after a power interruption. If you’re looking for a reliable, whisper-quiet fan that punches well above its size, this is the one. I can’t recommend it highly enough.

I just received this fan in the mail today 2 days early and nicely packaged so that’s always a good start. I bought this fan for the purpose of putting it in my vegetable indoor grow tent for circulation because it has sooo many options to how you want to put it either set on the bottom on it’s feet, clipped to the poles of the tent(which has a great sturdy clamp so no slipping down at all!!!) in which you can adjust it up or down which is great, you can hang it from the top poles by the top of the fan which has a loop for any type of string or anything you have to tie it with which is a great option, and it even has a strong magnet to attach it to anywhere on the walls! 😱 which is awesome! The metal plate to put on the outside of the wall to magnetize to isn’t included but it’s cheap to get if that’s how you want to use it. So it’s absolutely perfect for what I needed it for and it has 3 settings of low medium and high and is very powerful on high for such a small fan especially and it’s so quiet I didn’t even realize it was on at first honestly! But as I was looking around I realized that I can use it on my end table next to my bed for a nice cool breeze or in my living room while watching tv for good circulation I mean it’s uses are endless and it’s a nice design so it’s nice to have out too. So I’m definitely going to need more of these even for when I go camping for in the tent! So I will absolutely recommend this product to my friends and family etc and it’s definitely worthy of 5 stars to me!

I’ve used several clip fans over the years trying to find the right balance of airflow, noise, and convenience. The VIVOSUN AeroWave D4 2-pack is hands down one of the best I’ve used. The airflow is impressively strong for the size. Even on the lower speed settings, these fans move a serious amount of air through my small tent. My plants have never looked healthier — stems are strengthening up nicely and hot spots are completely gone. Cranked to speed 3, it’s genuinely powerful for a 4” clip fan. Remarkably quiet. For the amount of air they push, the noise level is almost surprising. A huge upgrade from the rattly budget fans I was using before. The detachable hook is a feature I didn’t know I needed. Being able to clip it, hang it, or reposition it in seconds makes dialing in airflow angles so much easier. The adjustable angle is smooth and holds its position without drooping over time — something cheaper fans always fail at eventually. Getting two in a pack is a great value. I have one pointed at the canopy and one lower for stem strengthening and they work perfectly together to create a healthy circulation pattern throughout the entire tent. If you’re growing in a tent and need reliable, quiet, adjustable airflow — stop looking. These are the ones. Couldn’t recommend them more highly.

Only gave four stars because I've only plugged them in to make sure they worked seems to be a decent pair of fans especially because I got them on sale quiet don't oscillate but besides adjusting the speed you can also change the air flow quite easily as well as setting them up I have mixed feelings when it comes to Vivosun some of it is cutting edge some is a waste of money

Works well

I had a lot of hopes for these fans but after using them for 2 months I’m not a fan… When I first unbox them I was very happy because it’s solid and well made. They are loud even when I have the lowest setting so sometimes I stop them - if they touch the shelf they vibrates and makes a humming sound, so I’ll have to readjust. The magnetic clips are nice and strong BUT its angle are pretty fixed and not easily adjustable - you gotta find a spot that works for the fan instead of putting the fan that works for you. I bought a cheap computer fan for another grow tent and it works MUCH better for half the price. The quality of the computer fan does not feel as good but it’s lighter and has adjusting fan speed so on the lowest setting you barely hear a sound. These fans only has 3 settings instead of a dial so less option to adjust - I never use the higher speed because the sound annoys me a lot. If you have a large grow tent that’s not in your work space maybe it’s a good option as you may need a more powerful fan for it and the noise won’t bother you. But if you have a smaller setting like a plant cabinet in your living room or office I would not recommend this product. Honestly it’s a one star product for me, but given that this is a well made quality product I’m leaving it 3 star, as I see that it’s built for a specific use ( grow tent, as its marketed) and I could imagine it would work well. So it would be unfair for me to give 1 star, just that this is a highly recommended item in the plant community so I’m giving it a neutral comment to highlight the issues when used in plant cabinets

Didn't even bother testing the fan. All the images exclude the fact that a power outlet is needed. I realized after the fact that a single image showed a USB A but given all else, I still would've assumed it was an A to C or something for charging since its advertised as freestanding without wires. It didn't even come with a block to plug in. The clip isn't adjustable and very inflexible- will not fit the size of a standard wire grow rack. Even if it did.. the hook will not hold the fan's position to adjust for direction. It just falls downward. Total junk.

Plug and play fans, whisper quiet, compact size, easy to mount and pushes enough air to help strengthen the stems of my plants. Only regret, not buying another set of them

Gewoon zoals geadverteerd! Snelle levering! Compatibel met de Vgrow

Im Zelt..... best Ventilator für untenhalb der Pflanzen...

Vraiment chouette ! Consomme très peu, puissant pour sa taille, je recommande

Good quality, reasonably priced, excellent out put 3speeds, alterable direction output. Usb powered,quite efficient just ad expected from Vivosun

for the VGrow it perfect and perform as it should ... for a really small tent or growbox i wish it could rotate and escalate to distribute more air