Both Emisar D18 and Acebeam X80-GT can only produce maximum output for a short amount of time before stepping down due to heat. Even if heat wasn’t an issue, turbo would drain batteries in just a few minutes.
I think 10klm is a sweet spot. I’m waiting to see a 4xXHP 50.2, 5700K, 3x18650.
Right now I’m looking for a thrower, Astrolux FT03, with 875 meters throw for 38 usd, is amazing, though a bit big. Will possible first go for C8G or C8 plus.
There is no other flashlight in this world that come even close to the GT4 in thermal performance and ability to sustain output. If you use this outdoor with a breeze, the temps will be much lower. The heat fins effectiveness is greatly amplified with airflow. There is also a handle you can use to more comfortably hold the light.
I do have a MT03 TA that I’d be willing to part with. Not sure what’s its worth, I just don’t use it much except for a WOW light with friends. Did start a campfire with it once, tho.
We are talking about commercial lights here. The test done with the GT4 had the temperature limit turned off. If the light was used “outdoor” at nigh time as it would in the real world where there would be wind/breeze, the light will not be able to reach that kind of temps. Even with the temp limits on, it can sustain output better than any other commercial lights out there. If you were to run the GT4 at 20k lumens, where the LEDs are in the much more efficient range, the heat generated would be halved and the rate of heat dissipation of the GT4 host will easily handle that. Prior to the GT4, the highest sustainable output for passive cooling was 12.8k lumens for 10 minutes with the Olight X9R Marauder. The Acebeam X70 can handle 20k lumens with fan and 7.5k lumens without fan. The Imalent MS18’s 22,000 lumen mode measures 13.7k lumens and drops quickly in brightness.
Here’s the thing using a light of this caliber you would need to go somewhat out of your way to an open space like a large park etc etc which would yield a breeze or some wind, if you are using this light in an urban area then you give other hobbyists in this niche a bad name and bother people……
In general there is always airflow while outside unless you are in a vacuum…. Also fun fact Texas produces more from wind power from wind than coal and its generation is roughly 21-22% from wind alone, coincidentally Texas leads the states in wind energy production by triple the next highest state.
