I installed this one: http://dx.com/p/e27-0-7w-7-led-25-lu...-265v-ac-37160 in the community darkroom that we run here and a member of the group said that she tested it and it seemd safe.
I need to do some tests myself in order to be able to recommend it without any doubts, though, because I am not sure if she did a thorough test !!
I have a couple of good darkroom safelights in my own space (Osram Duka, Ilford) but I don't know if I will be able to find a replacement for the tungsten lamps found inside once they're gone !!