The lighting is two 36" four lamp fixtures, T5 HO, and uses the lamps that came in the package. It was marketed for freshwater plant growing and to be honest, I am not sure the lamp combination is perfect.
Each fixture came with:
(2) 39W 420/460 lamps
(1) 39W 10,000k lamp
(1) 39W purple lamp
This turned out to be too much light (PAR @ 70-80) for a non-CO2 tank, so I have cut it ~40% using black screening on two or the three glass tops. I have the main lights on ~ 7 hours per day and the blue ones for ~10 hours. Plant growth has been slow, but I am spoiled by the CO2 injected 75g tank. Algae has been controllable, partially by the water sprite in the upper half of the tank.
I do like the programmable aspects of these lights and the night light LEDs are cool. The fans make some noise though.
This is a long winded way of saying that these are the nicest lights I have owned but they may not be the best I can possibly have. Perfection is difficult.
Last edited by tomfromstlouis; 02-01-2013 at 03:14 PM.