Re: I really really want one of these! (EIL-BK)
well, AFAIK the guy to ask is ttran97, though I presume there exists a model name EX1-BK I have no way to finding it out.
According to testing from user carrot the KX1's boosting circuit is more discriminating than that of the L1, that is to say it will not turn on with depleted batteries that the surefire L1 can still perform with. :sigh:
I think your better off using rechargeables if your going to go with that setup. Z68s exist on surefires scoutlight weaponlight models
EDITED with CORRECT INFO:thanks:
The lego'd light your referring too looks absurdly similiar to my home EDC: the TW4-BK, essentially a E1e-BK body, E2D Tailcap, a KL4-BK head bought from BST in CPFM, and an AWRCR123A available from lighthound, the KL4 will function on a cr123A but its significantly more dimmer with a longer runtime.
E2D-BK+KL4-BK, E1e-BK
Swap the heads and tails
In this day and age I'd suggest buying a E2DL [entire light or preferrably just the head and tail] and look for a E1e/E1L-BK [entire light or preferrably just the body] as a more cost effective choice, that is...if your going to stick with the lego selection for the duration of its life..otherwise I'd consider buying whole lights for each. In time you'll realize and appreciate each of the components and hey! you never know, what you might like might not be the style you really want now
happy Legoing