someone correct me if im wrong, but i think koukis are H1...and color temp refers to the color temperature of the output...theres a reference on the first page of a general understanding of what its gonna look like...higher DOES NOT mean "better"...for the best interest of visibility, its always best to stay under the 5-6000 kelvin range...but then again, its all preference; plus the fact that your projector lens will compensate for the lack of visibility with higher range bulbs
