A huge majority of my time in LE was spent working nights.
I found the cheap plastic 2 "D" cell flashlights work the best. Most have a spot inside or an extra bulb.
I did hundreds if not thousands of building searches mostly alone. I found the fancy super bright flash lights lit me up (do to reflections) as much as what ever I was looking at.
Also they are harder on your night visions. They seemed to last longer then the high priced flashlights and if they did crater, you could get another one for a couple bucks.
Get good battery's and keep some extra in the car.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071