Sorry for the 2x post...
I just finished testing the green Rebel and green K2. The only "problem" is that I have two MR boards, one is an Anakin with 4xAAA and the other is a Vader ESB with the stock 3xAA pack. The problem is that I couldn't use both battery packs with one board (without a lot of work). I would have liked to try each board with both battery packs.
Anyway, here are my results:
K2 green with Vader/4.8V = 820 mA
K2 green with Anakin/6.3V = 1000 mA
Rebel green with Vader/4.8V = 1270 mA
Rebel green with Anakin/6.3V = 1250 mA (this should have been higher...I don't know why not)
Also noticed that the initial measurements were way over these by about 300 - 600 mA but quickly dropped and after about 20 seconds they "settled in" at the above measurements.
The K2 was underdriven but the Rebel was overdriven. This does match with the assertion that the lower the forward voltage, the more current it will get (Rebel fV is 3.1V and the K2 is 3.85V).
Well, do your own tests and see what you come up with. I wish I had a Red Lux III to test since those have a lower forward voltage (2.9V) and should be getting more current.
Thanks Xsaber for the tips.
I kinda remember Ultra giving Ionsabers a 'whupping like a redheaded stepchild' because Ionsabers was saying he used K2s that were brighter than LuxIIIs in his conversions and Ultra said that was wrong because K2s were actually dimmer than Lux III with MR boards because the MR boards didnt supply enough current to run them optimally...or words to that effect [apologies to Ultra if I have misremembered, misunderstood, or mischaracterized his position but I think it was something like that?] but now with results like these I'm wondering if maybe MR boards could drive K2s at full 1500 milliamp current afterall with use of a higher voltage 4 cell battery solution? Maybe Ultra was right about conversions because those were using the standard MR 3 battery pack but perhaps it was because of that pack not the board itself that we thought MR boards couldnt support K2s optimally?
Does anyone have a MR board, 4AA NIMH pack, multimeter and K2 to check that??? [I have a Vader ESB board and K2 but no multimeter so cant test it myself]