i found a maglite mini led flashlight at home depot yesterday, and that thing is awesome! i dont have any fertile eggs yet, i just got my roo, but i candled a regular egg in a lit room, and i could still see the yolk and everything perfectly. whats funny, is my incubator has not been shipped yet, and i am already buying a candler, and candling infertile eggs... i think this *might* turn into an addiction!