It doesn’t.
Pretty much all the Zoomie-lights have the same flaw - the whole head moves - and the heatsink is on this head, but doesn’t really have contact to the part that gets hot (because it has to move without any problems).
The SK98 stands out here - it has the heasink after the moving parts - but you pretty much can’t get a “good” version of this light nowadays.
I would say that you should get rid of the “must have zoom”-thing.
I have 3 SK98 here and barely use them because modern flashlights cover the same stuff just as well - you don’t really need that zooming feature - it’s just a nice thing to have but it drops the possibilities of the flashlight so much that it’s imo nonsense to have.
I would get a C8 + 18650 with inbuilt charger
A zoomie usually don’t have good thermal path to the outside. Especially those still uses threaded pill.
To get palm sized 1000 lumens flashlight running continously until the battery can no longer support (assuming no step down timer built in and it has good thermal path) is easy:
Wrap it in wet small towel or bandana. I successfully did this on occasions.
Modded an SK98 yesterday with FET driver and dedomed SST40 LED. Hollow pill, but I used a copper Noctigon star with extra Arctic Silver 5 at the edges.
The heatsinking is excellent. I ran the light for about 5 minutes on max on a Sony VTC5 today. The moving bezel got very hot and the body tube around the heatsink fins got quite hot. The rest of the body tube was merely hot.
However, even after all that time at max, no part of the light got too hot to touch. Kudos to the Sipik 98 design for having all that heatsinking.
That said, today, I salvaged the H17F driver I had in the SK98 and put it in a different, smaller and more streamlined zoomie. I use my zoomies as pocket EDC lights and the SK98 with its awkward raised ring near the tailcap and sharp crenelated bezel just isn’t pocket friendly.
Too bad the Aleto N8 zoomie is impossible to find. That light was one of the smallest 18650 zoomies around and had heatsink fins on the body like the SK98.
Like everyone says, get two budget lights. One for general use with a nice spread and another for throw. The most budget I can think of for these are Eagle Eye X2R running XM-L2 for general use and X6R running HP-L HI for long distance.
I camp a lot and have never felt the need for anything brighter than 20 lumens around camp. For night hikes, one might maybe need 150-300 lumens, but I usually find it easier to walk with 30-50 lumens especially in a small group.
The only need for 1000 lumens I have is for wildlife watching after dark, and that’s when the X6R comes in. It’s pocketable, cheap, and throws out to a decent distance for 8-10x binoculars.
+1
A decent headlamp and a compact thrower is all you need for most camping trips. Add an ultra small keychain light attached to your bag/jacket zip for backup.
Like others have said, there’s no light that fulfills all the requirements. However, to get constant 1000 lumens with a zoomie, the Fenix FD65 might fit the bill. No USB charging, not pocketable, not cheap though.
I do see the advantages of a zoomie for sure.
OP you have to realize 900 or 1000 lumens is both bright.
The difference between 1 and 101 luems is easy to see, 101 and 201 also, but 900 and 1000 ia very close to the human eye.
I’d say the Convoy BD zoomie, stash the little charging clip under the spring of the tail and you have a very nice light that can be charged from a powerbank and can be used during that. It is a clicky side switch so no parasitic drain and it is good waterproof.
A NW tint might give lower official lumen but ypu will still see more and with a diffuser as simple as a plastic drinking cup you can use it as table top light too where the nice tint helps again.
Oh and the BD series fits 26650 cells, so you can use 18650 and if 20700 and 21700 take off and get to high mAh values (with Tesla actively researching this might just be the highest energy dense cells in a few years) you can use it, something a 18650 light will not allow you to do.