GeoBruin
Flashlight Enthusiast
It's a Malkoff M31w. The M31 series is the low voltage variant that will run on a single cr123.
Note that many (most?) other drop ins will not fit the Malkoff host. It's kind of a 1 direction thing... Malkoff drop ins fit other hosts but other drop ins don't fit Malkoff Hosts.
To be honest, you're not going to find another drop in that will run on a single 123 that will perform much better than the Malkoff. You're getting almost 300 lumens in what I would describe as a floodier than average beam pattern (large hotspot with good spill). There really aren't that many drop ins out there that run on a single CR123 cell (compared to a single Li Ion or multiple CR123s) and getting much more than 300 lumens out of one is going to require a significant increase in current draw. Using an XM-L might get you those extra lumens and definitely increase your flood. As you say, see what Vinh or NailBender can do but again note that those drop ins won't necessarily fit the MD1.
Note that many (most?) other drop ins will not fit the Malkoff host. It's kind of a 1 direction thing... Malkoff drop ins fit other hosts but other drop ins don't fit Malkoff Hosts.
To be honest, you're not going to find another drop in that will run on a single 123 that will perform much better than the Malkoff. You're getting almost 300 lumens in what I would describe as a floodier than average beam pattern (large hotspot with good spill). There really aren't that many drop ins out there that run on a single CR123 cell (compared to a single Li Ion or multiple CR123s) and getting much more than 300 lumens out of one is going to require a significant increase in current draw. Using an XM-L might get you those extra lumens and definitely increase your flood. As you say, see what Vinh or NailBender can do but again note that those drop ins won't necessarily fit the MD1.