Quote Originally Posted by faithless
Thats strange and wrong.
2 700K is warm, cool white is around 4 000, and 6 000 is blue. Any source will tell you that.
Theres no controvesry there, its common knowledge in these circles.

http://www.cameraguild.com/technology/kelvin.htm

To tell sex, you must see the pre-flowers.

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It's definately strange, and one of them is wrong. I am assuming the mislabeled the lumens output (which is 2700) as color temp.

I'll search about pre-flowers. I thought that you needed to start the flowering process to know.

4000k you say? That seems to be a pretty useless color... since I have heard 6000s is good for veg and 2000s good for flowering...