My coop is not very light inside. The only light that gets in is through the chicken door, and a 2' x 1' hole in the door(covered with plexiglass). It is not real dark, but not super light. Could this be the reason I haven't got an egg yet? There is no electric, but a can run an extension chord, although I don't want a chord running through my yard. The hens, two buff cochins, go in and out of the coop several times a day, but no eggs.