The bad batch of bulbs concerns me, but everyone says their customer service is great.

I like a really white look so the 10k might be fine for me. I've only seen the one at AD, which I'm assuming is the stock 10k.

3 out of 6 of my T5s are 6700K. Sounds crazy, I know, but stuff that looks bad in other tanks looks good in mine. Of course, stuff that looks good in other tanks... well.

This light would be a huge upgrade, a major shift - in color, and par.