Oh acebeam k75 was a sbt90 g2…opppss . nvr seen it. I often to neglect “expensive” section… but, image above clear showing a different, based on the “tunnel” beamshot. K75 has smaller hotspot than ni40.
someone tell me if the LED only the 90.2 might be able to fit in the emisar d1s would love that combo or let’s hope emisar d1s-v2 is coming with something like this led?
I would not say it’s perfect. It has it’s pros and cons. Some people might want longer Turbo time so they use a less powerful battery. Some people might want the longest runtime at med brightness level so they use a higher capacity battery. Pick the best battery for your needs.
Received mine yesterday. It’s a nice light. I measure 240kcd with a 40t. I was hoping and expecting a bit more. Like in the 300 range. I need to measure the lumens later.
But the memory is kinda finicky. When turning the light off in turbo, sometimes the light will turn on in low mode, high mode, or turbo. And I had the light on turbo for 5 or more seconds before turning off. And I waited 5 or more seconds before turning back on.
I tried like 20 times. I will test it some more when I get home from work today.
I don’t recommend putting a 21700 in there because it is longer than 26650 and will crush the springs. I had two Nightwatch NA40SE where I tried to use a protected 26650 and it permanently crushed the springs. Output permanently decreased by about 25% when using the same unprotected 26650 due to reduced spring contact pressure with the battery resulting in higher electrical resistance.
If reflector cup design to hit 1km, sbt 90.2 might be suit for it??
efficiency : it draw a way too much current, 20A? and not giving it best perfomance, instead overperform and exhausted in the initial turbo…but not that bad, probably its host undrestimated high current passing…
In terms of heat shedding, the host is as good as it gets. Probably the only thing that can be done to extend turbo is to use a copper shelf/pill like the Nightwatch IRA that used to be available from Enogear.
If this thing can hit 240kcd, that’s pretty impressive already since the head size is about the same as a GT Mini and D1S which only throws 130kcd.