100v-240V with speed control

Quiet as a mouse.

The media could not be loaded. This is a high quality fan. I am trying this style and another style to exhaust the warm air from my closed in shelf / 3-sided-box in a walk-in closet that I use as my wiring closet for Wi-Fi, home network, NAS and security video recorder.It is a solid fan but has three hardware shortcomings that the manufacturer should be correcting:1) the screw holes on the 'back' side of the fan intended to mount the grill are NOT COUNTERSUNK despite the provided screws being intended for countersunk holes. It is ironic that the holes right next to them to mount this fan in a chassis are countersunk.2) There are only two screws provided (although the instruction sheet says four), so it is presumed they are for the grill. That said, those screws are too long and project beyond the grill in what could be a dangerous length to catch skin depending on where the fan is mounted. So, I just took some simple SHEET METAL SCREWS I had on hand and screwed the grill directly to the housing.3) Numerous buyers rightly complain that the thin wiring to the fan has no strain relief and could be torn free, particularly in the applications where it says this could be a blower for a BBQ or fireplace. I SOLVED that by applying a self-adhesive wire dressing clips I had on hand plus a the twist tie that was on the fan's cord.Looking forward to finding the right combination of (variable) fan speed and noise to exhaust the desired amount of heat.

powerful fan , working pretty good so far.

Its a blower style fan. On/off with just power and ground. Cant speak to how long it lasts, but it works.

I have a large Samsung 30cf refrigerator in a built in in area with only 1/4" clearance on the sides and 1" clearance on the top available for ventilation. This was generating a lot of heat in the 8" area between the back wall and refrigerator. I mounted this horizontally under the cabinet by the back wall and top of refrigerator and and even running at about 7 volts it quietly exhausts plenty of hot air and keeps the compressor area cool. I am hoping a cooler compressor area will result in longer compressor life, time will tell.Update 08/20/23No issues whatsoever still silent and working greatUpdate 11/11/23Still running greatUpdate 3/16/24No issues whatsoeverUpdate 5/12/24Over a year still running greatUpdate 10/5/24Still running great

Excelente

The fan makes a lot of noise when running at 12 volts. I reduced the voltage to 5 volts and the noise is much less but i don’t get the volume of air i wanted.

Arrived the next day, really solid build, and will hopefully last a while. I’ll definitely buy another one if I need it.