“A collaboration between TLF (Germany) and BLF (global)
Fritz15 made a small triple flashlight on his lathe.
TLF reacted very positive and at first a small hand made batch would be pursued.
Yet, this elegant design just screams for a wider audience.
For a lot of us mere mortals, seeing the cool things machinists make on their lathe is just a dream.
Hence the finish of the FW3A will be clear anodizing, no sanding/beadblasting before anodization.
The idea is to give all the chance to have a light looking like it came of a lathe with the protection of anodizing.
(surface finish details are still being worked out though)”
At full power? A few seconds. Have you used an Emisar D4? It’s a lot like that.
At a more practical power level? It should run indefinitely at several hundred lumens, depending on how you configure its thermal parameters.
Here’s an output graph from a few months ago, showing thermal ramp-down and then a relatively stable level:
That first minute is likely to ramp down faster than shown in the graph though. It was actually too hot during that first plateau, so I made it adjust down faster.
When started at the default ceiling level of 1100 lumens, the result looked more like this:
This test was 9 months ago though, and things have been updated since then. Mostly, it just shows a rough idea of what to expect when using a high mode which isn’t turbo. I think this test also had a lower temperature limit configured. The stable level depends on the user’s personal configuration and environmental conditions.
The thermal response really depends on a lot of different things… so it’s hard to give concrete answers. I think it’ll probably ramp down very quickly on turbo though, in most cases. And at lower levels the response happens later and slower.
It’s largely based on predictions, so the rate of change has a huge effect on how the light reacts. If the temperature is rising very quickly, it’ll make a hard turn downward. But if it’s rising slowly at the same temperature, it’ll only make a gentle turn.
At full turbo though, there’s sort of an override which forces it down to a more sane level as soon as the prediction goes above the ceiling. So, expect it to only do turbo for a few seconds before it drops to the maximum regulated level of ~1100 lm *.
* Lumen numbers are from my cheap uncalibrated light box, and I suspect the real numbers may be a bit lower. I really should order some reference lights from maukka sometime, and build a proper integrating sphere.