the sample is still test type isn’t?i hope there is a solution for fixing this amnesiac driver :~
As the others have asked, the highest output only has 592 OTF lumens?
Always starts on low… is it “moonlight (0.4lm)” or “low (4lm)” to be exact?
Thanks and it’s getting more interesting!
If Ive read this correctly, and Im not rereading the thread so if I missed it, my apologies.
The TEST sample has no memory. But the one being discussed for the GB should have memory. It is one of the options requested by _ the _.
From the OP
“…- 4 modes, LL-L-M-H (0.2, 2, 25, 100), with memory, no blinky modes!”
As I understand that, the lowest mode is moonlight or similar being .2. And if high is 500lumens, then LL @. 2 (low low) is 1 lumen. (500*.2/100)
So how’s the group buy looking at this stage?
I would like 1, thanks.
Some answers to questions above..
1. OTF lumens
I think the drive current is a good compromise as is. 592 lm OTF is not bad at all, see the following comparison table:
The drive current could be made higher, but I wouldn't dare to give out that kind of light to a non-flashaholic.. It would simply become way too hot when left unattended.
2. Mode memory
The GB lights will have a good memory, which engages after being off about 2s (not more!).
3. Runtime, heat, heat sag..
I'm planning to perform the runtime tests this evening. Please wait.. :)
Preliminary result is that the head of the light gets quite hot after being on for about 10min. Body tube / cells don't get hot at all.
Thanks for update, the, good job ;)!
With memory if you leave it in low. Then it’ll turn on in low. Problem solved. If you are not leaving it low, then the reality is you probably don’t use low as much as you think.
And at the end of day if low really is the most important and used mode. Then picking a 4AA light is overkill and you’d be better served with a 1AA or 1AAA light.
Sorry but I don’t quite understand about this sentence. Do you mean that it actually behaves like the Nanjg driver, i.e. when switching it into high mode and stay in high mode for more than 2s it will memorize the high mode?
If you have a mode selected eg low with the light on. Turn it off and back on again quickly it will go to the next mode. If you turn it off and count one two and turn it on again it will be in the mode you left it in, rather than advancing to the next mode.
I like this implementation of mode memory. Thanks for explaining it to us.
Looking good so far, the issues i was really worried about the threads and the issue with the batteries and the head. the mode memory sounds fine to me.
Runtime test at 45min mark. Ambient temperature 25°C, no cooling, head temperature 87°C.
Would you like to have any higher current? 
87 degrees C = 188.6 F
yeh, kick it up + 24 degrees F so I can boil a cup of water for my Tea....
Th problem is, if your using moonlight to low and back, having to cycle through the high modes. It's not about not leaving it in low, it's that it's sometimes inconvenient being forced into high, even briefly. If you have a tactical use that makes it important to always start on high, maybe you'd be better served by a single mode light.
YES
The light is well regulated, but the head heats up pretty much, causing some thermal sag when run indoors without any cooling (not in hand, no moving air). Ambient temperature was 25°C and the maximum measured temperature of the head was 90°C (at 59min, when the light ran out of regulation). That's pretty hot, but then again, not too hot for electronics, and the body tube and cells were in comfortable less than 50°C temperature, which is perfectly ok for NiMH cells.
Conclusion: This light is driven at suitable level, being bright enough, but still safe for careless non-flashaholic users. :)
Note: The graph ends at 2h mark, but the light is still running with about 0.5 lumen light. Currently 4h and counting..
Wonderin' how she would do on lithium primarys....
But this problem will exist with any light with more than two modes. Regardless what it starts on or if it has memory or not.
And again. If you only use moonlight and low, then a 600 lumen 4AA light is simply the wrong tool for the job.
Yeah this is exactly what I could imagine. So the mode memory behaves like my other Qlite drivers. Thanks.
I believe you are confusing the “off time memory” Chicken Drumstick described with the “on time memory” used by qlite and other 105c-style drivers.
“on time memory” memorizes the mode based on how long the light has been on (for example on >2 seconds), “off time memory” memorizes the mode based on the amount of time the light has been off (for example off >2 seconds).