Hey Gundari, if you are still around (sorry just read thread), I have a Philips fouro tube box. On the box it states:
soft white = 3000k
cool white plus = 4100k
30 watt bulb.
Just in case you can read the tube..sorry all I have are soft white right now. Don't know if this helps or if maybe I am too late.

good luck
Fishens:jointsmile:
fishens Reviewed by fishens on . Answers about CFL, HPS, How Much Light... Although I'm still kind of a new poster, I keep seeing a lot of the same comments--many of which are answered an Dr. Khronik's excellent El Cheapo Guide to Lighting. But there are a few things I'd like to add in regard to watts, lumens, cfl, hps, and efficiency and how much light you need. Maybe this should be stickied? Watts have nothing to do with light or growth. Watts measure how much power a light fixture uses to produce light. You can tell how efficient a light bulb is by looking Rating: 5