Not sure about PAR, but the light looks much more intense than the PC
I had over the 2.5g. I have to keep it at 30% power because it hurts my eyes to look at when at 60% (using battery power for now until I build a regulator +voltage divider).
I figure if 60% is too much for me, its too much for the tank. Once my 7.5g gets here (tomorrow) I should be fine at 60% or more.
I altered the LED
placement for better mixing. Now the blue and whites are staggered on each row. Much better coloring now...