My SCUBA instructor in college was a Ranger taking classes (some form of post-enlistment ROTC, I think). His line was “nothing is too good for our soldiers, so that’s what we get them - nothing”. ($600 hammers notwithstanding)
Hey, good smart people like here, just dedicated to lighting.
My favorite light right now us a Nitecore TM11. TM standing for Tiny Monster. It’s not their brightest anymore but runs onn4 18650 LiIon cells in parallel. At full output it draws 9 amps. Rated at 2000 lumens with a nice smooth beam. Easily lights up houses 1200’ away.
This LED flashlight looks very bright.
I’ve had good luck with Nitecore lights. This may be my next one.
Nitecore TM26 Amazon.com
Gary as a fellow addict brought up some safety issues with usage of Li-ion cells in lights. They are manageable but should be understood and a little re-emphasis doesn’t hurt. Most of these lights are basically using laptop powerpack cells. The difference is major companies are standing behind the included circuitry managing charge and discharge in the pack. You lose that if you just buy the cells individually. Some chargers available for them are less well designed, to be polite. Candlepower forums is a great place to really dig in and understand how to keep safe if you go that route. There’s also other options using more traditional cells for those that don’t want to dabble in batteries as a hobby. 
Budget Light Forums is also worth looking at for some of the more budget offerings on the market. Be aware that, especially in the budget side of the market, claims can be wildly distorted. Lumens claims is a big area of exaggeration if not outright lying.
I brought a flashlight that was bright and I asked the salesman if I could put new blubs in when I needs to and if the store has them . The guy said “Yes” .
I dropped my flashlight and one of blub got broken it had 3 blubs in it then another blub was going dead so I brought my flashlight back to the store and was told they don’t sell the blubs and that flashlight was a throwaway one ! It didn’t say this on the package ! I was BS ! I hope your flashlight isn’t a throwaway one too.
Modern flashlights use LEDs. They are pretty much unbreakable, and are the least likely thing to fail in the flashlight.
elt htat be a elsson ofr oyu. odnt egt blubs! 
Blubs are not nearly reliable as LEDs.
Man, these bright flashlights are terrible for night vision. I grew up camping with your classic Mag-lite 2x D-cell, one of which I still have. When I started camping with the kids I bought a couple more of the newer, LED versions, and holy hell. These aren’t even Internet Famous for being bright or anything, they’re just your standard LED Mag-lites, but I almost always use the old filament torch because my eyes can actually adjust back to the darkness faster when I’m done using it. Search and rescue or military operations, sure, these new flashlights are great, but for anything else I’m going to need a brightness setting.
If you’re a camper I’d suggest two things.
Look for lights that have variable output and either come on with low intensity or have a control ring that controls brightness. That way you can get just enough light you need at the time.
Look for lights advertised as warm white or neutral white. Warm white seems to work better in the woods so far as identifying objects. Warm white or neutral white light are going to cost more because the way less are made result in the majority being cool white. I have a warm white led head that looks exactly like a good incandescent bulb light.
The good ones have several intensity settings from candle mode through retina-melter
I think this is the first product I’ve noticed at Amazon that has the same percentage of 5 stars and 1 stars (40% each) with 20% 2 stars.
Almost bright enough
-Rick who used to mount aircraft landing lights on this car as driving lights back in the 1960s
Welcome to China, Baby!
Depends on the Maglite. I’ve got a 2 D-cell model that puts out some 275 lumens, and that thing is way more than I need. I can light up the end of my street some 150-200 yards away with it.
That XKCD comic is pretty much spot-on. The whole “moar lumens!&!!!” marketing competition is kind of silly; it’s about as dumb as the megapixel competition in digital cameras.
Like others have said, you’ll kill any night vision you had with brightness past a certain point, and second, battery life sucks on a lot of these super-bright flashlights.
I have a few of the newer generation of LED lights, and they’re great, but what the mfgrs seem to be doing is to optimize light at the expense of battery life. I got my son a $1.50 Ray-o-vac 2xAA LED light, and that thing’s amazing. It puts out like 20 lumen- about as much as an old 2xD cell flashlight, but does so for 48 solid hours. For 99% of what I use a flashlight for (looking for stuff under beds and furniture, better lighting in the garage at night and sneaking into kids’ rooms and looking for stuff at night, his $1.50 light is more useful than my 250 lumen Maglite, which is mostly handy for lighting up the occasional possum or raccoon making noise in the backyard, or for acting as an ad-hoc lantern if we have a power outage.
Don’t get me wrong, no criticism was intended - more like praise. I’ve read through several of the threads and recommendations when I was looking for weapon lights. I greatly appreciate any who have the interest and dedication to be experts in any subject matter. That’s a good board 
Holy crap, what’s the wattage on those? Didja have to upgrade your alternator?
No offense taken.
The threads in the automotive lighting section are lots of fun. Folks come in asking about HID or LED kits for their car and are quickly informed that they don’t work and are illegal for hiway use.
Lots of smart folks both places.