I got my Nashbar Brilliant II (5-LED) today.
I took some pics, including one taken about 25 feet across a room at ISO 800, 1/6 sec f/3.5 to try to make it comparable to slvoid's image strip. It looks like it comes in about equivalent to somewhere around a 5 watt halogen.
Here's the Nashbar page for the light
Here's my gallery page with slvoid's strip and mine. Also there are two outdoors pics, one with my trailtech HID but that makes the LED look pretty pathetic.