sorry, i didn't notice if the bulbs were different. i was there this wkend and happened to notice them. i will say they're not cheap (about $15), but a whole lot cheaper than buying the lamp! as for the type to buy, i can't say for sure. i remember (WAY back when) we had a true color light box at college. at the time they cost a small fortune, but the difference was astounding! things that seemed the same in normal light were totally different under that lamp! it was pretty cool back then. now, i guess it's common knowledge that lighting can change the appearance of color. well, good luck!