Depends if you have version V1 or V2. V1 is a bit dim, but its pure white. That is explained on the ordering page. V2 is BRIGHT!
V1
By Vamp Design
V2
By Vamp Design
Pic of the V2 on a Honda Accord (its more white, less blue.. I didnt white balance the camera):
http://www.byvampdesign.com/catalog/images/accordLP.jpg
The ones posted on that one site seem to burn up over extended periods of time. They'll blame you for the problem and wont replace it. I replace it no questions asked. If you have one of those smoked out license plate covers, no matter how bright your light it.. it will still be too dark for police.