I like to echo the answer that pointing a weapon aimed flashlight would not be the best scenario. You have to point the muzzle to see with the light. I have 3 D-cell Mag-light that can double as a club if the fight gets close.
But I know where everything is in my house even in the dark. I can navigate without turning on the lights. Even half asleep I can get up in the middle of the night and go to the bathroom without tripping over anything. I even hit the toilet every time. To my wife's delight.