I'm using an Alpha fan with LED which is now 16 years old for my living hall, daily ON at least 12 hours, still running perfectly with no noise at all, even the remote control is still working fine with physically damaged due to drop.

I have quite a few Deka fans all not reliable, some dead in few years, most common problem is the fan speed slow down due to capacitor problem. This is easy to fix, just buy the capacity and replace it, the fan speed will be back to normal. Remote control failure is also very common for Deka.

I'm thinking of buying the Alpha cosa CX10, it is quite cheap, not sure how long it can last.