I brought the chihiros wrgb. I run co2 and 1/4 strength ei dosing. 15gal cube.
I've been struggling with bad Green dust algae for some time, turns out the light is way stronger than I thought.
I was running it for 10hrs, at 100% for 4 hrs. I'm now running it at 80% for 1hr then ramping down over 5. The algae has definitely slowed right down. Once it is gone I'll start increasing the light intensity, then photoperiod length.
Coupled with the commander 4, it's a great light. Definitely over kill! But it gives lots of headroom to play. Just remember in the beginning that less light is more.