Spread is deceptively good. I found one of my lights was only putting out about 1/2 of what the others were. But the Par rating under that light was mostly unaffected.
I would space the lights 2-3 inches apart. Mine are 4 inches from the water. I am going to place them a bit closer than that. I would suggest placing them 2.5 inches from the water for the best results.
Originally Posted by Michael
Thanks for posting your results. This much light definitely puts you in the "CO2 required" category.
I am curious about the spread characteristics of the lights. About how far apart is each spot light mounted? Also, how far above the water surface? This will help others (like me!) decide how many are needed over different sized tanks.