I think the K rating is why these 4 I have in there right now are called "Sunshine" bulbs -- they're 5000K and 86 CRI. It's not quite 90 CRI but then again, they're being supplemented by sunlight, so... Balancing act.
They were like $5 for 2 bulbs so I'm not too worried about it. The only other ones nearby were "cool white" bulbs which I was thinking about getting too -- but I thought I had originally bought them, so I bought 2 Sunshine bulbs today -- whoops.
It doesn't seem super overly bright, I can still look in the general direction of the rack, for example.
I was expecting it to be too bright to look at.
I guess I won't know for a week or 3, but man, I'm anxious now. I repotted the Darlingtonia in a bigger pot and pure LFS -- it came from my source in California potted in peat and perlite, but this puts it a good 4 inches closer to the lights, so, we'll see. The pot is an insulated foam planter -- in theory this will help it survive outside here.
I did take some (about half) of my Darlingtonia seeds out of the fridge -- they've been in there 6 weeks stratifying -- I figure it's a good time to start now. I put about 1/4th of the seeds in my Live LFS container and 1/4th of them in my cutting rooting container (the container I have my sprouted Cape Sundew and VFT cuttings in trying to root). The remainder went back in the fridge just in case.