Here is a fan mod I did to work better with the my LED light ring. I planed to order a Blow Radial type fan next time I do an online purchase and mess around with a new mounting. Yesterday I had this idea and designed up a part to convert a standard 40mm X 40mm fan. There are several conversions out there but require taking the fan apart and cutting the fan fins off. This just screws to the fan. It seems to efficiently change direction of air flow.
I temporarily mounted it on the LED to try it out. So far it seems to direct air better around the obstructions I have.