VEVOR Inline Duct Fan, 203.2mm 506.2 CFM with Temperature Humidity Controller, Quiet EC-motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

For the price it's unbeatable. I would have expected to pay a lot more. Very strong power even at 30 percent power and runs Very quietly too. All adjustments can be made. Very strong and robust. Digital unit is metal. Absolute bargain i might even buy another

This thing has been a god send during all of the hot weather as of late and I’m sure my chickens agree with me too as when the air is so still we can’t get the heat out of the shed so with this I can pull in the cooler air from outside and have it set to come on when the inside get above 20 degrees and pump the cool air in for them ☺️

It does what it says it does. Its a decent device. It doesn't sound to loud even at full speed. Only thing missing is an app link for controller but considering the price, thats a minor thing. Overall, very happy with it.

I bought this fan to replace an age old extractor fan in my attic space, removing moisture from the bathroom. The extraction power feels twice to three times as powerful which is exactly what I needed. Installation is easy I cut the plug off and put it into an isolator linked to the pull string switch. The controller is nifty, easy to use. The only feature I can't see in the controller is the option to have a trickle speed at certain temps, it's either on or off at the desired speed. For what I need though it's ideal. I just need to get a roof tile vent now to compete the job.

Amazing product for a price, I really love that fan power is controllable and display unit allows me to set up various conditions. Love it.

Only worked for 6 weeks before it completely stopped working. Impossible to get hold of seller. Upon further inspection I noticed the fan blades aren’t even completely unbalanced. Very bad built quality. I do not recommend anyone purchase this item.

Does the job, and handy control panel, with several settings. Sturdy good product.

Fan itself works perfectly fine as i need it for ventilation. It is practically silent on the 1st speed and creats sufficient air suction. On max speed it holds a pillow on my vent.

Très bien pour le prix Qualité correcte

"Già possiedo diversi prodotti VEVOR per il laboratorio e posso dire che sono una garanzia. Anche questo aspiratore dà un senso di solidità e di ottima fattura, a partire dalla scocca che è molto robusta e con una ventola potente. Con il display si regola facilmente la velocità, è semplice da installare e all'interno ci sono degli spessori che vanno applicati dietro la piastra per evitare vibrazioni. Lo consiglio vivamente!"

I purchased this 4" duct fan to be used as a ventilation fan in the attic of a second story room above a garage. I am going to be using the room as a gaming/man cave room and wanted a ventilation fan that I could adjust the speed of the fan and be unnoticeable when in the room. This fan works perfectly for the limited space I had to install it in and with the asthetically pleasing LCD controller, this fan met all criteria I had and then some. It gives accurate readings of the air temperature and humidity %. It also, of course, controls the fan speed with 10 program or manually selected speeds. On the lower speeds, the fan virtually cannot be heard which is exactly what I wanted. The higher speeds are noticably louder for obvious reasons but it really moves some air which is the whole purpose of this fan. It has been running continuously for a month now and works flawlessly. Overall, excellent choice for a variable speed duct fan with all the bells and whistles and the best part is, it's a fraction of the cost of similar type fans.

I received the inline fan very quickly, thanks for that. However when testing the fan I soon found out that the so called controller actually does not do well what it should do, it is advertised that it can be used well in a grow tent but unfortunately this is not going to work as it should. This fan controller that comes with it is actually nothing more than a temperature gauge with a termostat. There is nothing really adjustable in the thing just regulates on or off at a specified value. It should go to a low setting when the temperature is right in the grow room but it doesn't, it goes off. You don't want this in a grow room, you should always have negative pressure/fresh air in connection with odors etc. This fan looks nice with a nice controller but for growing purposes it is worthless, do not be fooled by the nice movies on youtube about this fan which is also sold under many other brand names but are all identical! I find it a pity because the service speed of this shop is fantastic but I feel cheated by the product. The fan is not broken, it just does not work as promised. This one is going back. I will buy a more expensive fan with a real controller.

Tout à fait conforme à la description il y a un variateur d'intensité de 0 à 10 très pratique en fonction de ce qu'on va en faire. Relativement silencieux.