4.72" Fan 12V

I have a car fridge of 75 liters EUHOMY brand and start overheating which burned electronic card twice. I replaced the old low quality fan with this Wathai and fix the whole problem. I use my fridge in a very hot environment, but that's not an issue with this fan. Airflow is powerful and do the job excellent. If what you are looking for is to cool down your devices this is the one and the best you can get. It's been almost a year and my fridge is working 24 hours without any issue. I think this fan is underestimated. I give 5 stars.

bought 10, 2 already died after 5 months

I can't attest to the longevity of the fan since I've only had them installed for the day but I can say these move some serious air and I'm impressed on that part. They're loud, but they aren't designed to be quiet so I don't feel it's fair to review negatively for this. It also isn't something that's very important to me when my PC is under load. I have a fan controller installed so I just turn them down manually when I'm not doing anything hardware intensive. These don't have the normal pwm headers that you would get on PC fans, however you can probably fit them on anyways..just make sure to figure out which is positive and negative beforehand with a multimeter.

Both fans arrived DOA. Sealed packages neatly packed, however, both fans failed to work. Additionally, the power cords are fairly short.

Purchased to replace the internal fan in my compact HEPA filter which has 3 speed settings. It's definitely too loud to use on the high setting and makes a whining kind of sound, but the fan blows an equivalent amount of air to the original fan (max of 80 cfm) on the medium setting. It's still louder than the original fan, but this is used at work on my desk and not in a bedroom so I'm fine with that. Just installed it so I hope it lasts a few years, but I don't recommend it if you need a quiet fan.

I bought this fan to go into a budget media server - the fan runs and moves air. However, the fan does not perform well when it comes to static pressure situations. The 4U rackmount chassis that I put this fan into was originally very restrictive, causing the fan to pull in almost no air. I removed a bunch of metal from the case to allow it to breathe better, but it did not make that much of a difference inside of the chassis. Being racked in a datacenter, I'm not so concerned about the noise it produces (it's pretty loud), but the amount of air it moves when set against anything that's not mesh is pretty abysmal. If you're going to purchase this fan, make sure your use-case will have this fan behind a mesh grill or free standing. It's a waste otherwise.

Bought this to replace the fan on my Komos kegerator. I tried a few other fans and this is the current winner. I would certainly never use this on a computer, but works great on the kegerator. I can hear it through the kegerator with the door shut. Tap lines are nice and cold again tho. Appears to be built rather well and I expect it will last the full ~4 years that I am anticipating. I would buy it again without a doubt. Worked better than the Noctua fans I tried.

Exactly as described, works great!