I hadn't thought of bludgeoning anyone with it,now that you mention it I suppose that it would make a fair club.
I did have a $150 12 watt light purchased from the LBS should have been good, right? Problem was that it threw light everywhere and the battery didn't even last a six mile trip to work. I already owned the three Mag-lites that I am using for a light system; 2 three cell, 3 watt mini-mags mounted low on the lowrider rack for close road definition, The large 4 D cell,3 watt gives good distance illumination. I also use a 3 watt light on my helmet. I still have 12 watts of light,just in a more usable manner. I also epoxied a Blackburn light to the big Mag Lite for a "see me" light.