The A2 as described by js and others is a fantastic light, but every good comes with a bad (if you beleive in the balance of good vs. evil and that kind of stuf). The bad part is that the A2 spoils you for ever. You simply refuse to use an incandecentnot light which is not regulated, and you refuse to use an incandecent light that is not nice and white
Jim ("js") gave us the first Surefire regulated alternative with his M6-R, and even though AWR and Winny are working on regulated alternatives for the M6, credit still goes to Jim for the "first" regulated M6
After modifying my own M6-R to run at 7.5v DC RMS , I first played with the MN15, then the MN20, and finally the N2. The N2 has long been a favorite of size15's, and now I can see why - it is a beautiful beam, with the most "round" lamp for the KT bezels that I have tried so far
No, the N2 will not win any lumen contests, but for somebody like me that finds the A2 almost perfect for walking at night in my neightborhood, and also finds the MN21/M6 an overkill (although perhaps the most stunning beam ever used by me!), the N2 is quite perfect for a regulated, ultra-long running light . The best thing about the M6-R(7.5V) is that if/when I need "more", the MN20 will run just as perfect in the same setup - almost as if the LOLA for this pack is the N2 and the HOLA is the MN20
Here is the A2 on low, then A2 on high (incandecent and LED), and N2 on M6 with M6-R(7.5V). All photos with Canon Rebel XT, kit lens on wide angle, manual focus, F5.6, at 2 seconds.
Here are some beamshots of the N2 in "action" against other lamps on the M6. All photos with Canon Rebel XT, kit lens on wide angle, manual focus, F5.6, house on 6 seconds, and others at 8 seconds.
First against the side of a house to compare the quality of the beamshot: N2 on M6 with M6-R(7.5V), MN20 on M6 (normal primary cells), MN21 on M6 (normal primary cells).
Then against some trees, to compare trow and sidebeam: N2 on M6 with M6-R(7.5V), MN20 on M6 (normal primary cells), MN21 on M6 (normal primary cells).
and finally, pointed at the trees, but from further back so that pavement can capture the brightness of the sidebeam better: N2 on M6 with M6-R(7.5V), MN20 on M6 (normal primary cells), MN21 on M6 (normal primary cells).