[Maine Sail]

Caframo Bora. A little quieter and lasts longer than the Hella, in my experience.

For get the clamp-on feature. Get several and put them where you need them.

Bingo! The Bora by Caframo is a great fan. The WalMart grade clip ons are disposable. Buy two or three at a time and when they start to get noisy pull out the next one...