Jahn,
Isn't it like night time over there? What are you still doing up? Anyway, Shelby was right. I put 3 CR2's in the M2 with the P91 bulb and the CR2's can't put out enough juice. It's about as bright as the P60 bulb. DOH. K-T's idea will be better I think. The SF lamps require too much juice, I'm going to radio shack to look around for a more suitable lamp.
NOTE: THIS IS ALL JAHN'S IDEA. I WAS FOOLED LIKE EVERYONE ELSE HERE, I AM AN INNOCENT VICTIM..........still determined to make this CR2 expiriment work somehow though. Maybe with an LED.