Review on 🔵 2-Pack 50mm x 15mm 5015 12V Dual Ball Bearing DC Brushless Cooling Blower Fan, 2-Pin Terminal BB5015H12 by Darryl Montagna

I admit I may not be using them properly. I installed this as a set of two fans for my Ender 5. I connected them in parallel from an existing 12V power supply. They will blame under 40% power (which is probably why they died). I noticed none of them worked so I checked everything back to the fan. One fan refused to spin at all, I was able to turn the other one on, but after it ran for about 30 seconds it started smoking. This was after about 2-3 weeks and maybe 200 hours of work (40% or so was only for the first few shifts until it got to 50%). They both died around the same time (I only noticed this a few days ago when I started getting really weird casts and noticed my casts were seriously sagging).