paulr,
I used the Anglehead with red filter for the year I was in Korea. The goodness of the Anglehead was it clipped to the flak vest and I drop tested it all the time. It went through monsoon season without leaking and worked well except for the crappy bulb.
The Elektrolumens Anglelux anglehead takes care of the brightness, beam quality and beam color problem handily. Now, I have a light that will clip to a vest/belt, shines for over 24 hours of regulation, is water resistant, does not clang around like a metal light (or conduct electricity) has filters in the tail and it looks like a regular anglehead. That is, until you look what is inside the lens or turn it on. /ubbthreads/images/graemlins/naughty.gif
The Elektrolumens Anglelux is to the military anglehead as a BB500 R2H Fraen LP Kroll minimag is to a regular minimag. It is nice to have a "sleeper" flashlight at times.