thanks for your participation :bigsmile:
#5 is deceptive because its head is smaller and the black area is larger than it should be imho. here is the solution of the quiz (and also with comments of real life perception):
1) at t = 0 (frame 3), on the GIF the brightest lights are either #3 or #2. it looks like a tie, more or less. maybe #3 is minimally ahead.
2) at t = 18mins (frame 4), all lights have declined in brightness at different degrees. the brightest light is either #1, #2 or #5. since #5 is misrepresented in the GIF, it's not #5. Counting only the pure black area, then #1 is the brightest. On the GIF counting the whole darkish area, then #2 would be the brightest
3) the best regulation from the very beginning on has #1 because the black area (geometric shape) remains virtually unchanged, undeformed. #2 tries hard to stay very bright (and it is indeed the hottest torch after 18mins!) but we can see that it is not well regulated. #3 has lost much in brightness and ties with #4 as the dimmest lights at this point in time. #5 has, as we know (Klarus MiX6), flat regulation but it does perform a step-down from High1 to High2 after 2.5mins, i.e. it doesnt have flat regulation from the very beginning on. the step-down can clearly be seen in the GIF.
4) the light with higher output from t=18mins on AND flat regulation will be brightest after 36mins. since #2 is bad regulated and consumes too much cell power, #2 will have died after 32mins. At some point in between (00:18...00:32) #2 will have dropped in brightness below #1, on the GIF. #3 is already "dim" since 00:18, and #5 was the dimmest at any time (as was measured by selfbuilt, also in graph). So the brightest light at t=36min will be for sure #1!!
The interesting point is that solution1) is ONLY TRUE in the GIF if the Eneloop cell is 100% freshly charged (e.g. 1.54V). In real life (e.g. white wall hunting, ceiling bounce tests, practical use of the light, ..) #1 is clearly brighter than #2, #3 (and #5) as to perceived brightness. Anyone could tell easily by comparing #1, #2 and #3 at night. So the GIF does a poor job of telling us that #1 is actually the brightest at t=0min and at any other point in time. I am sure that one could prove my sensational finding with precise measurements (neither selfbuilt nor HKJ tested this new version!).
In any general or practical situation (e.g. with an Eneloop cell at 1.40V) OR with precise measurements (selfbuilt didnt test this new version neither did HKJ!) it could be proven that the overall brightest light is #1.
Fantastic result. With #1, I have found a torch (1x Eneloop AAA) which is brighter than the Tank E09 and the iTP A3 XP-G R5 at any time! And this is topped by its runtime:
80mins!! (to 50% brightness)
Now talking figures, #4 is rated roughly at "60lm" (manufacturer's specs), selfbuilt had measured 68lm. #1 is rated roughly at "70lm" (manufacturer's specs), and i would estimate a more accurate number is between 80-85lm since it outshines #3 and #5 (both rated above 85lm at t=0min) and rivals my AA-lights:
To be clear:
#1 is definitely brighter than the Xeno E03 XML NeutralWhite on High-mode running on Eneloops!