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!

These fans are quiet and move a fair amount of air. I bought 4 , 2 white and 2 green for an 8x8 pop up greenhouse, also bought the 6 inch smart fan and a controller. The white ones came in what i would say is factory sealed new condition, with 4 foot usb cords. The green ones arrived in what i would say is used/open box condition with 6 foot cords. The usb cables are hard wired into the fan housing. The green ones came with metal stick on plates for the rear magnets and pole hooks. White ones came with no metal plates and pole clip hooks. Also there is no power supply included at all. Overall a good value and work great to spot cool those hot corners where airflow gets restricted. I use 2 with the included pole clips and also hung 2 with flexable "Gear Keepers"

Perfect flow for our in home covered greenhouse. Pepper plants growing in Michigan in December...yeah, it works splendid and the speeds are great for simulation of wind.

What a cool little fan this is. Compact, very well made, has three different speeds, it also oscillates, which is super helpful in a greenhouse. Its also pretty quiet, not that I care but I am sure some people do. Easy to use, as it only has one button and all you gotta do is plug it in. This was exactly what I was looking for. I am so glad I bought the two-pack for when I get another greenhouse. I use the slowest speed as my greenhouse is small and all Im looking for is air flow. Will definitely buy again if I ever need another.

This is a great little fan. It fits perfectly in the little port openings of your grow tent! The opening on my tent are about 6 inches across. It pushes quite a bit of air for how small it is It has three speeds and they are pretty considerable from one to three, it can get a little loud on level three level one pretty quiet. The directional grill on the front is really interesting. It’s set at an angle, no matter how you have it so you’ll want to choose left right up or down as a direction but if you want to spin just loosen the front knob a little bit and it spins all over the tent, which is really cool. Your options for hanging this tent or attaching it to a Small diameter pole on like a basic tent, but if you have a tent or a gorilla tent, it will not clip onto those larger bars. It has a nice magnet on the back that you could find a little metal plate to have it attached to the side of your tent or you can hang it with a string, The only downside I can find in this little fan is it has a USB plug but most of us have an extra power cube laying around. If you live in a different country, this would be an ideal little fan for you. You could plug it into USB that goes into whatever power you have. For the price it’s made well. I give it five stars for price and quality.

THESE DO NOT COME WITH AC ADAPTERS/POWER SUPPLIES. I previously bought a single and it did come with one. If I would have known there was no power supply I would not have bought them. Should have bought other fan I was looking at, was half the price and comes with a power supply and my last one lasted 3 years of constant use.

STAYS ON AFTER POWER OUTAGE!!! THE ONLY USB FAN THAT DOES THIS. I PUT IT ON THE END OF A 4 INCH DUCTING TUBE, THE OSCILLATION WORKS GREAT. I HAVE A VIVOSUN D4 INLINE 195 CFM AS THE MAIN FAN ON A 28 X 28 TENT AND THIS ONE INSDE THE TENT PULLING AIR IN FROM THE DUCTING. INFINITE NUMBER OF HANING OPTIONS, METAL BRACE, SOME PARTS CAN BE USED FOR OTHER HANING OPTIONS, JUST PERFECT DESIGN. GREAT VALUE