I do not honestly know what voltage do these employ, but since they likely are 10S emitters their Vf will be somewhere between the mid 20s to high 30s V depending on current load.
To better know this and many other relevant things some CoB emitter test is required. I would likely buy some and send them to djozz (if he is willing to test them, hope he is - will ask him via p.m.) or maybe maukka, I've done stuff like this in the past too (for example I finally bought Henrik these newer higher density 26700 LiFePO4 cells for review, their test result should be up soon). However doing it just by myself gives me the creeps, mostly because my health needs to receive my scarce funds and my bank account regularly hovers in the low two figures…
In any case, we need to attract the attention of some to decide what to test, gather whatever funds to buy the emitters, buy and send them to our reviewer.
They have all sorts of of CCTs, a few sizes and many power ratings. The categories to check, firstly Sunlight spectrum, and probably at least some test in Full Spectrum.
I was referring to the previous mode, not mode memory.
Previous mode makes it possible to enter the previous mode, which is impossible now since we can only select next mode.
Bistro UI has it by using a half press for 1 second (someone correct me if I’m wrong)
So basically i am asking for an updated Biscotti, but i’m not sure if it will be possible on the Atmel Attiny which is used, maybe the Attiny 85 only has enough resources.
There is no reason to want a COB in a flashlight, for all possible purposes a powerled makes more sense, even when pure flood is the goal. (there was a thread about it)
Asked maukka about making some sunlight spectrum CoB led review. Guess he will say something in a while.
I understand they may not break any luminous intensity record. However, with a decent sized reflector they will still be suitable for short range lighting, at the very least.
Hi Simon, I am very interested in flashlights using monochromatic light, e.g. your new C8+ using Osram's KR CSLNM1.23. Did you measure the output in lumen yet? I wonder if 2.5A is its sweet spot already or if it can safely be driven beyond 3A with signicantly more output.
For comparison:
I have bought the Amutorch New VG10 from Neal Zhang. It's fitted with Osram's Ostar Projection Compact LE Q8WP. It has 3 modes only (Low-Medium-High). For the naked eye, there's barely any difference to see between Medium and High mode. But on High mode the lights draws 5A from the battery. The head unit gets fairly hot within a few minutes.
I think there is no problem at all to increase the current to 3A. The mode of my driver sample is 30–100, but visually the brightness difference between the two modes is very small. I consider only providing one mode 100% or two modes 10–100. I don’t know about hunting. I would like to know if 10% mode is useful for hunting. Or is a 100% mode sufficient for hunting?
100% mode is NOT sufficient for hunting. Having a LOW is important.
I wonder if there is a visible difference between 10-20-30% as Simon mentioned.
SOS: I personally find hidden RED Strobe or SOS or beacon, quite useful.
Our car always breaks down in the wrong place and using a RED flashlight blinky instead of the car blinkies preserves the car battery . Of course it could be Hidden but very useful. on the other hand WHITE strobe is annoying.
