Beam shots are very difficult to take and reproduce accuracy.
The massive mtbr test last year was very well carried out by Francois, the forum founder. He used the same settings for every light he tested. This was for control, and seemed to give a fair representation of what you would you see on the trail.
The pics which stoner has posted are plainly over exposed. The centre part is completely white and burnt out.
I had a go at taking some beam shots last year comparing the Hope Vision 4, the Nightlightning iBlaast! NZ light and the L&M HID Arc. I had to tailor them on my PC to get them to look what I thought to be accurate.
Here is one of the iBlaast! which I still think is a little overexposed