My guess is that you have medium intensity, near the high end of that light range. This is assuming that T5NO bulbs give about half or a bit more intensity than T5HO bulbs, and that the reflectors you have are not quite as good as those in T5HO fixtures.
When you use a good CO2 system you can grow most plants, but slowly, with lower light intensity than is normally recommended. I think we should give much more attention and priority to getting that CO2 system and a lot less attention to picking a high tech light system.
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