Fireflies ROT66 Flashlight

Good! This is taken from the last version used in ROT66, right? The mode configurations appear slightly adjusted. Will this modified NarsilM become available for download?

If anyone should receive one for free, it’s you.

Mostly I just want to make sure people understand and follow the license, which requires publishing the code used in the product. I wouldn’t complain about a free light, and if I had one I’d probably port other code to run on it, but my main concern is that everything stays open.

ROT66 heated up really quickly. If you don’t like the default thermal step-down, you may set it to a higher value, or pick one of those NarsilM pre-defined step-down timers (60secs, 90secs, 2 mins, 3 mins, 5 mins, 7 mins). But do not disable it completely. I once tried to disable the step-down and cooled the light with two fans. However the surface temperature still went up and up, to 108°C, when Turbo was on. That’s dangerous…

I don’t know what the issue is. Emisar had kind of a similar issue though, and I think this is the revision which fixed it in RampingIOS:

https://bazaar.launchpad.net/~toykeeper/flashlight-firmware/trunk/revision/186.1.11

If I understand correctly, it only forgets when the batteries are removed… and it doesn’t always happen.

Received my Fireflies yesterday!

Nichia 219B SW45K R0908 vs. XPL HI 5000K 3A

Size comparison

Beamshots (Camera in Manual Setting, WB set 5000k)








GIF

Very nice, Thanks

Ohh, thanx! I'll check it out.

The size comparison is really useful. Definitely a bit more pocketable than the Q8, though I can see why it heats up faster on turbo. I’m always surprised by how chunky the M43 is.

Thanks Charles Lin! You post some of the best comparisons I’ve seen! I’m surprised the MF01 looks so much brighter than the Fireflies XPL-HI version. The MF01 219C makes about 7k real lumens. Whereas the XP-L hi ROT66 is supposed to make 10k lumens. Do you have a TA lumen sphere to compare the two?

Thanks for the pics Charles, very helpful. Noticed you have the MF01 beamshot in the gif but not standalone. Any chance you could edit that one in there?

It does look quite bright but honestly the floody LEDs really show off at this short distance. 7k vs 10k lumens is not much difference really and especially since the HI is more focused it’s probably just the extra 3k all in the middle where it’s already too bright in the middle for the camera.

Awesome comparison Charles Lin!

So if you had to only choose one ROT66, would you go with the XPL HI or the Nichia?

The Q8 is a wonderful light for the money and demonstrates its better reach in that picture quite well.

Very nice! What do you think of the champagne color? I could see myself loving it or hating it, but can’t decide from the pictures.

My MF01 is running Lexel FET driver with NarsilM v1.2, it should output around 9000~10000 lm.
The best output munber I can get from ROT66 XP-L hi is 7480lm @ 0 second & 6650lm@30 seconds with VTC5A.

I personally prefer Nichia. very nice tint & it is only stock high output light use Nichia 219b R0908 as far I know. XPL HI runs very hot in turbo mode for only about 30~40 seconds.

I’ll do it.

It is personal preference. I like the champagne color because it stand out against all the other dark color lights.

I’m surprised your MF01 look that much brighter than the ROT66 and even more surprised that it is so much more on the rosy side of the BBL than even the Cree 3A. I have two MF01, one stock and one with Lexel’s buck driver. The 219C tint on both is on the greenish side of the BBL. One is significantly greener than the other.

The MF01 renders colors the best in your comparison. I think you won the tint lottery with the 219C.

Does this concur with the the notes I quoted from the Q8 (FET+1)? I can’t really tell.

That first step down looks a bit larger than 100% to 55. Maybe more like 100 to 35%? Does that seem correct?

Sorry, all that code looks Greek to me. Lol. So does it look like the ROT66 is using their own tweaked version of NarsilM v1.2?

Is this correct? In mode 4:
Level 1 is set to 100% of channel 1.
Level 2 is set to 100% of channel 1 and 2.
Level 3 is set to 100% of channel 1, 2 and 50% of the FET.
Level 4 is set to 100% of channel 1, 2 and the FET.

This kind of makes sense to me. I hope it’s correct.

I believe the spacing in brightness levels will vary between the 219C and the xpl due to the Nichia version using 7 x 7135 and the Cree version using 14 x 7135. Is this correct?

Do you know how to set your own temperature limit? Here is a link to a video I made showing how to do it. Make sure to start with a room temp light inside and out.