Hi Grinkyle (forgot to say it last time sorry!)

I got my bulbs from ebay, i just searched for "6500k" and "2700k" and found them like that.

I also got my temp/humidity reader from ebay, it came from hong kong but its damm good and was cheap too!

Some bulbs actually have the kelvin rating on the bulb base, some on the box, and like you said, some don't even have it on anywhere. Like S666K said, look for daylight or cool white bullbs if it doesnt say the rating.:thumbsup: