Needless to say there was no way to distinguish the front sight from the rest of my house as it was all black. Same thing with the bead on my shotgun, nothing but black.
A flashlight is on my list of things to get, however it's a little further down than my sighting system is.
This is an important fact you are missing, and is why I recommend the flashlight first.....
A red dot will make it even harder to see detail because the bright dot will hit your eye like the sun in a pitch black house.