Wathai 140mm AC Fan 110V 120V Variable Speed for Reptile Cabinet Cooling

Best unit out there. It managed to cool off my most powerful Ryzen 9 370 AI Mini PC by lowering temp by 12C on idle. Highly recommended, I will be getting more for my other MiniPC's. This little monster has some power, it uses 12V with a dedicated power supply with a variable speed switch. I bought before a ELUTENG Dual USB Computer Cooling Fan High Speed 120mm 5V USB which has a great construction but has a weak performance and didn't make any difference on any of my MiniPC's . This is the one you need to make a tangible difference in CPU Temps with the heating wave we're currently having in eastern Canada. It requires some basic assemble, manual wasn't that clear and overall design could be better, after assembling metal grills with screws, nuts, and plastic base which is great, a tip on the screws had some protruding that may cause some short circuit if leave it unattended, I used double duck tape to isolate and prevent any contact for each one of the four large screws, and have a piece of mind with my highly valuable MiniPC.

This fan is excellent for distributing heat in my apartment. The only heat I have is in my living room and I have the fan in my doorway that leads from there to the rest of the apartment. It’s quiet and I can control the speed depending on how cold it gets. It’s a great buy that I’m very happy with 👍

Needed to help cool an electrical panel in the summer, works great.

i always buy wathai fans when i need small non PC air flow. I have 4x140mm fans and 2x120mm fans that direct my AC right to my face while i’m gaming. 2x140mm fans are set up with dryer vents tubes direct the exhaust from my pc directly outside my window. i have run these ran at almost twice their capacity for almost a year now using an after market speed controller and they still work great. you can tell they were build to take punishment

I originally bought the 120 mm dual fans from same seller but those didn’t have the power I thought they would. I need a certain amount of air flow for a refrigeration evap coil. So I ordered a pair of the 140mm ones and wow! night and day for being so close in size. A single 140mm fan has the same power in wattage as the combined dual 120’s and feels so much stronger. So I get a true 12 watts of power with a pair of the 140’s. The blades are bigger and the motor inside is noticeably larger as well. Just what I needed. The turntable knob for fan speed is a really nice feature. i have to use them on full blast all the time so hopefully they stand the test of time. Really good product five stars