Grab the GT110 at the sale if you could. Otherwise I’d recommend K75 since the performance is basically on par, but it’s quite a bit cheaper and weighs only 1kg, instead of 2kg for the GT110. Acebeam build quality is generally regarded as better.
Ya I just posted the GT110. I know somebody that has both. I think the K75 only lasted a couple/few minutes on turbo. The GT110 last a long time on turbo. When you set the stepdown with the GT110 with Narsil m1.3. You can do a timed up to 7 minutes I think it was or a thermal stepdown and just in the house it was about 20 minutes. Even then it wasnt that hot or warm. The GT110 just has such a mass to it.
Also I found a discussion, that the current batch of Convoy has QC issues, so maybe 3x21d is really not a good idea:
https://www.reddit.com/r/flashlight/comments/1e7139e/convoy_3x21d_current_batch_out_of_focus/
Acebeam K75 seems more expensive than GT110.
The same guy I know also has a 3X21D. I had been tempted by the 3X21D a few times. I think its a pretty good value. That being said the 3X21D is not a GT110. A light I think is pretty cool is the Amutorch DM90. The same guy I know also own that one too…he has I think near all the best throwers. My friend says the DM90 is great, but the GT110 is still better. He says the the GT110 is his best. He also has the GT94X. He says the GT94X is of course brighter, but it heats up. The GT110 throws further than the GT94X
The POWER is a mid size thrower, and Lumintop claim of 2 km throw and 7000 lumens is ridiculous.
For the POWER, maybe you’d get 5000 lumens and 1 or 1.2 km?
The biggest advantage over Convoy (or any other competitor) is that cell. I’ve tested the 46950 battery Lumintops (GT46950, Mach V2) and their 3x21700 counterparts (Mach, Thanos 23). They’re all FET drive and perform okay, but not to spec (15-20% low). The runtimes with the 46950 batteries is incredible. Plus huge power bank capacity. Blows away the 3x21700 versions. No comparison. The 46950 cell is becoming more common too, more than the 26800 and its not very expensive.
Alternatives? Convoy 3x21D for regulated (or FET) driver and lower price with batteries, Amutorch DM90 around $220, has regulated driver and almost 2.4 km throw. Acebeam K75 v2, probably the most capable big head without being ridiculously large thrower available now. GT110. Expensive, heavy, and a nearly proprietary battery.
You choice, but the POWER is a compelling option.
My friend has the K75 v1 and v2. My friend doesnt seem to like the K75 that much. He says it steps down to soon. He likes the GT110 better than the K75. I think my buddy liked the GT110 over the DM90, for the bigger battery capacity.
Right now I’m leaning towards GT110. Bigger size/mass is more Turbo runtime. And all of those lights are just a fun toys to me, not for EDC use. So the size and mass matters less. Is GT110 also FET?
As the price goes - I can get here a GT110 for 300USD/270EUR new, which is less than K75.
I think the cell in GT110 can be easily replaced after you remove the brass ring?
One thing for me why I didnt like the K75. Well I think the K75 is cool, but the thing I didnt like about it is it uses 18650 batteries. Most of my batteries are 21700.
GT110 is a direct driver. For the record, if you’re spending $300, I recommend the K75 any day over the GT110 because the output regulation is amazing. Plus Acebeam makes some of the best lights on the market.
Turbo steps down, but retains high, constant brightness. Look at 1Lumens review. Way better than any of the Lumintop GT series.
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You’re not supposed to remove that battery, and good luck getting a replacement. Plus it recharges painfully slow.
The GT110 is better than the K75 period. The K75 is a nice light, but the GT110 is better
I finally decided to try a smaller thrower first.
Just ordered 3x21d with buck driver and 3xP45B. I will see how it performs. When I get bored with it I will think about a bigger one.
Additionally I pulled the trigger on M21D SFT40 5000K to have some compact thrower just in case.
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Good choice. Two solid flashlights. A masive thrower which pretty much uses the best led available for a long distance flashlight and the m21d is a nice jacket pocket size flashlight without being too bulky or heavy. P45B is one hell of a battery. High current, good runtime and excellent performance in cold or heat.
Thank you all for help! I will post my impressions after they arrive.
I hope you will like it, and the M21D is a pretty good size as well, just barely small enough to fit in a jacket pocket.
I think if you somehow end up wanting more throw, you should try a LEP. They have just a small focused beam without any spill to blind you. At those distances you basically need binoculars, so the spill is just wasted light.
Lumintop has the Thor 3 which can be found for very cheap on sale every so often (around $90, wait for the 11/11 sale on Aliexpress if you want it), it is basically the budget king of extreme throw. Both of mine were not glued anywhere, and you can just use the M21D as a charger for it.
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I received both lights today and I am happy with them. 3x21d is really impressive. I don’t think I will need a bigger thrower anytime soon. What surprised me most is the M21D. In a useful range the difference in performance between both lights is much smaller than the difference in size. It definitely has more “wow” effect when its size is taken into account.
The biggest flaw of both lights is the UI. With Anduril they would have been almost perfect.
Problems I found:
- badly implemented smooth ramp (too fast in low light and too slow in higher levels),
- in M21D there is no way to quickly step down from turbo (double click in turbo should return to previous brightness level),
- stepped mode lacks at least 1-2 additional brightness level(s).
One thing I would like to confirm with the users of both lights: is 100% in ramp/stepped modes exactly the same as turbo (direct drive in both cases)?
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I’m glad you like them, feel free to post some photos or beamshots if you can.
The 3x21D with the 25A buck driver does not have direct drive, though it wouldn’t be needed really when 100% is 25A. I’m not sure which emitter is in your M21D so I can’t speak as to what driver it uses, but if it’s a buck driver it does not have direct drive either.
But for the Convoy e-switch UI, 100% is the same mode as “turbo” (2C).
Yeah, those are generally agreed upon to be the downsides of the e-switch UI in Convoys. It’s still rather usable in stepped mode, at least. The other problem is that there isn’t a very good voltage check, so you’re never exactly sure how full the batteries are.
The problem with the ramping speed is that they use a linear ramp, when perceived brightness is nonlinear (it is why Anduril ramps are polynomials IIRC).
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