Ah, you pikers. You want the worlds coolest 5-watt Luxeon flashlight?
size: 9v
Dimensions: 1.0x1.9x0.675
Voltage: 9V (at zero current)
mah: 595 (at very small currents)
Runtime: A few minutes at best.
Cool Size
Dimensions: 1.4x2.1x0.75 inches
Voltage: 7.2V
mah: 1000
Runtime: 1 hour
How much does this magical power source cost?
How about $35?
And what is it? How about two of the batteries out of my Motorola V-120 Cell phone. (I'd post pictures but my digicam is at Lake Powell. Sigh. It sucks when your toys have more fun than you do.)
Try:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1382066712
Hell, you can even get the flashy blinky version
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1382914421
The Star/O is about 1" on a side, the Star is about 0.8". Both are larger than the thickness of two cells. I envision a rectangular flashlight about the size of two Tic-Tac boxes placed face-to-face, with a 1-hour runtime. How's that for cool?
Too much work for you? How about this: A Sony NP-F330 battery pack from a Sony Camcorder. 7.2V, 5.0 WH, almost the same size package, $15 on Ebay. Figure out a mechanical mount that engages the ears on the battery, and the user could swap in a battery all the way up to an NP-F960 (38 WH, 7 hours runtime), depending on their needs.
Yeah, the 5-watt Luxeon is gonna be cool.
/frank