100gal Build: New Pics

[sphelps]

Originally Posted by lastlight

The fans seem even more important to your design than fixtures with fins as these won't do much without the fans is that right? Will you have a way to monitor temp or air flow in case they slow down or fail?

Yes more than likely if the fans fail things will get pretty warm, however depending on the design on many fixtures and how they are enclosed this could be common issue with LEDs. I also ran some LEDs on my previous nano on just plain old flat bar without fans, they did run very hot but still appear to work as new a year later so worst case scenario doesn't really mean frying everything.

Some testing will give better answers but the design may still work if only one fan fails and if it does appear to be a serious threat I do have some plan B's to integrate as safety devices, temperature monitoring is certainly one of them. The other thing is the drivers will be mounted on the same heat sink and they will shut down if their temp rises above 150C.

The fans should however be pretty reliable seeing that they are the same used in some flat panel TVs which would also be pretty reliant on them. Plus I do have two back up fans on hand for a quick change if needed.