Does anyone know of a source for good PAR ratings for LEDs? Looking for distribution and depth. I found some from Sanjay
http://www.advancedaquarist.com/2010/5/aafeature2 but don't see how that correlates to what others claim that they can compare to 400w MHs. Just interested.
I don't think I am going LEDs on my DT (standard 120), but I may want a project in the future. I am concerned about the penetration and distribution. Would they have a PAR of ~ 300 at 24" depth???? Thanks.