i wanted to try these bulb but with the deal i got from sps coral store on the 250w aquamax 14k bulb i could not resist. i am really happy with the bulb
I thought the 8k/10k splitting the day would be cool to see what it does with the corals. Give them 8k from 10:00 to 2:00 then 10k from 2:01 to 6:00 letting T5s and LED s do the dawn to dusk.
I used them a few years back. I didn't see much difference. I used the 15K/20K bulbs. They'd fire 15k for the first 4 hours then 20k for another 4 hours.