Follow does the cree xt-e cool white comes in 8000k kelvin ? October 11, 2016 16:07 LEDgroupbuy Community Help does the cree xt-e cool white comes in 8000k kelvin ? 1 Comments Date Votes Milad Sakiani July 29, 2013 06:15 Hello, CREE does not make a 8000K cool white. The ones we carry are 6500K For tanks, you dont want to use a high kelvin cool white you should be looking at using the neutral whites with royal blues mixed in. Please note, for anything past 6500K white, corals/fish/overall color starts to look really bad. If someone offers you a 15000K LED, run the other way! Please sign in to leave a comment.