Recently i decided to upgrade my bulbs on my odyssea quad t5ho fixture and i decided to go with ATI and Giesemann bulbs. Here are some pics of the change and what each bulb output looks like.
please excuse my poor picture quality. (olympus 1050sw underwater camera)
Odyssea light (10k and artinic)
Odyssea artinic by itself
Odyssea 10k by itself
ATI blue+ by itself
ATI purple+ & blue +
ATI aquablue+ by itself
Giesemann aquablue special by itself
3 ATI's and 1 Giesemann
while the odyssea lighting fixture and bulbs are decent, im VERY happy with my selection of current bulbs. The odyssea 10k bulb is a good bulb but does put quite abit of "yellow" light into the tank as seen in the above pictures. The ATI blue+ is a perfect color of blue (not too dark of a blue yet not too light) that is needed in a tank in my option and combined with the purple+ gives off a great appearance. However i do think the purple+ is abit too much purple hue in the tank.
While both the ATI & Giesemann daylight bulbs give off an excellent coloration, I personally like the Giesemann a tad better. The giesemann bulb give off a CRISP white coloring (11k which is 40% 6000k and 60% 15000k) while the ATI aquablue+ gives of a hue of blue in there (15k). If you compare the 2 pictures above (dispite the poor quality), you might still notice the suttle difference btwn the 2.
All in all im VERY please with these bulbs (minus the bit too much of purple hue). Even thought its abit too much of purple for my liking, i still will give it a 95%+
for both looks/appearance and light output.
Thanks for viewing