Are they individual bulbs or tandem bulbs, paired in two's? That's what I saw when I went to the Sunleaves site. I can't remember whether they listed the K numbers or the lumen numbers though. Perhaps you have another fixture I didn't see. One thing's for sure. Our T5 fixtures, and I don't know whether your bulbs are HO or not, put out a heck of a lot of lumens compared to T8 and T12 bulbs.
