I installed the One Armed Bandit today on my Giro 20.  Installed my Niteflux headlight to see how it looked.  Here are pictures.
 
http://picasaweb.google.com/dgholmes59/GiroNiteflux#
 
Here is a video with the light in flasher mode:
 
http://picasaweb.google.com/dgholmes59/ExportedVideos#5370041609449147282

Quote from FlyingLaZBoy on Aug 15^th, 2009, 3:48pm:

 
According to their website, the Niteflux Photo Max Extreme has the following projected runtime:
1.5 Hour High beam @ 20 watt  
2.5 Hour High beam @ 12 watt  
5 Hour Mid mode @ 6 watt  
10 Hour Low beam @ 3 watt  
30 Hour Low beam @ 1 watt  
20 Hour Flash mode @ 6 watt  
 
For the following lighting modes:
20 watt - High beam 1350 Lumens  
12 watt - High beam 800 Lumens  
6 watt - Mid beam 530 Lumens  
3 watt - Low beam 266 Lumens  
1 watt - Low beam 90 Lumens  
6 watt - Flash Mode 530 Lumens