They also need ease up on the aggressive stepdown. Whether cooled or not, on a 30T turbo steps down (from 1950 to 1080 lumens) after 1.5 minutes while the surface temperature doesnāt even reach 40Ā°C. They clearly have a temperature sensor so why not use that?
After the light has initially stepped down, subsequent turbo activations result in about 5-20 sec of turbo depending on temperature (in room temp when not turning the light off to cool in between). If the surface temperature is above ~46Ā°C, turbo is not available at all. This seems like a good safety measure, but the limit could possibly be raised a bit. On high, the light never heated up to an unholdable level.
On very low battery voltage, turbo works only for a second or two, but maximum level can be achieved with mostly depleted batteries.
With those improvements made, I will probably buy a few of them, some for my friends. For item 3, I thought there is a formula for reflector geometry to optimize the beam. I didnāt know they just arbitrarily shape the reflector.
Also timed step-down are for cheap low quality flashlights. Really hope Astrolux gets rid of it if it already has a temperature sensor.
Also hopefully it can supported Acebeam 21700 protected.
The FT02 can maintain regulated ~1000 lumens without stepping down for the whole runtime (~1 hour on a 3000mAh 30T) with an average efficacy of ~95 lumens/watt, which is about the same as the Zebralight SC600w HI at its 600 lumen level.
Unfortunately, I hate micro USB with passion. Probably if it wasnāt on phones up to not long ago I wouldnāt have noticed how fragile (although not anywhere near mini USB) these connectors are. Amount of cables I had to throw away really got to me.
And USB C has been around for good few years now, I see no reason to be stuck with pretty antient solutions.
Happy to report that the mid mode of ~500 lumens is also perfectly regulated with an average efficacy of ~115 lm/W. Runs for 2.5 hours with a 3000mAh 30T.
If they fix this firmware and UI, itās looking good.
Using high-quality micro-USB cables by Anker and the likes can be pretty reliable, though I am aware, (as one of my phones utilize the type-C now), the type-C is a design improvement with regards to reliable positive connection and more importantly, much higher charging rates.
