12V Fan Power Supply, Black, 2 Pack, 24W, 2A, AC 100-240V to DC 3-12V, PWM Fan Compatible, Barrel Connector

We have two 12DC computer fans which I custom mounted to the rear of our in-home bug zapper, as my wife's guinea pigs eat so many vegetables and fresh fruit, well, it's just inevitable that fruit flies will find their way into your home. Doesn't seem to be any way of avoiding this, especially when you walk into Trader Joes and see those little buggers buzzing all around the veggies.The computer were a bit too loud so we had to tune them down to about 1/2 speed and this 12 volt DC controller really did the trick.The dial is easy to read, fully adjustable, no issues with current distribution or lack of power, it simply works and works well.The guinea pig cages are now much quieter and the bug zapper is working much better than before this custom addition.I would absolutely recommend this controller.

As discribed

I needed to power a couple of computer fans for a project. It’s pretty simple to use… just plug it in and plug the fans in.

I purchased this power supply (ps) in January, 2023 to power two 60mm x 10mm case fans I mounted into one of my snake's bioactive terrarium lids. The ps is connected to a Herpstat 2, which has one port set for humidity monitoring. The power supply has worked without issue. When the Herpstat 2 hits the humidity level set, the power supply comes on and the fans work perfectly, via the ps, to keep the humidity at my desired setting. I also like the adjustability of the power supply. I am setting up another enclosure and will buy another shortly. It is inexpensive and works as it should.

Here's all one needs to know: this unit varies the DC voltage to 12 VDC fans (3-12 VDC) for "speed control" and DOES IT QUITE WELL! It's main use is to make "loud" PC fans "quiet" by slowing the blade rotation. The "Y" connector is quite handy for controlling TWO FANS AT ONCE.Operation: 1) connect the device to the fan's power connector 2) plug the unit to a wall outlet 3) rotate the knob to turn it on ("CLICK!"). A GREEN LED indicates it's powered up. 4) rotate the knob enough to get the fan blades spinning 5) back-off the knob to get the required "quietness" from the fan (you'll find the fan is still moving "quite a bit" of air!) 6) if desired, "tape down" the knob to keep it's setting from being changed 7) Walk Away, leave the fan alone, and let it "do its' thing"If you need to change the fan speed later: undo the "tape down", re-adjust the knob "to taste", then tape down the knob again.I ** DO INDEED ** recommend this unit!