I have too many flashlights and most just sit, but these three (well technically one is not a flashlight, but it is a battery powered light...) are the work horse, starting with the little single LED AAA Drocey. As you can tell I've had in my pocket for about ten years. And yes, those are O-rings replacing the long gone rubber "grips".
That one does 99% of all my needs. I've walked out of the woods, setup camp, repair cars, used it to illuminate dark cabinets and corners at estate and garage sales, found my way through my dark house, completed a test during a power outage at work once, and used it to get into a Data Center while the rest of the building was in a power outage...
Usable light for near 8 hours on one battery, and I carry 7 spare AAA's in a film canister in my fanny pack when I'm out in the woods, just in case... Flash light and spares weigh less that the other larger pretty bright multi LED flashlight, and lasts 10X longer one battery compared to the three in a set of batteries in the big one.
I've found that 99.9% of the time you just don't need aircraft landing lights to see adequately... (I will admit its fun to illuminate a hillside, but rarely have the need)
The "big" one gets used mostly for nighttime runs when I'm going to a house I don't know, and need to be able to see the ****** street signs... That one was picked up in a clothing store 6-8 years ago for like 5-6 bucks. I should have bought them out, its VERY well made... I tried to find another source, but they appear to be gone.
The third light gets used in my tent. Hung from the peak, its more than enough to dress by, set on my shoulder, I can read at night in my tent. The taped up jar lid is to keep it from getting turned on in transit in my duffle bag. I HATE finding it dead when I unpack... The switch is the lens, push on push off...
I've got fancier lights, but these are almost all I use anymore.