well this might not help - my son has the opposite problem, he is afraid of the dark. we have a moon that we got from jcpenny that glows in phases, he loves that. it's not very bright but it's something to keep his mind occupied while he goes to sleep. we also have a light we got from walmart that is multi colored, it goes from blue, to green, to red, and he loves that. neither are very bright at ALL but distract him enough that he can fall asleep. (we had the turtle KW mentions as well, it lasted him about 3 years, he loved it)
i have noticed the LCD lights (i think that's what they're called, the ones without bulbs) are SOOO much dimmer. so much so that i chucked them because they didn't serve our purposes. look for those, maybe. good luck!