In this day and age...the Age of Magicshine...paying $300+ for a light is just not cost effective. Buy 3 MS for the same price and use 2 on the bars and one on the helmet. You'll have more flexibility if something should go wrong with one and you'll put out more light in the end.

Alternatively, you can build a overvolted halogen (you all knew I was going there) that puts out more light than the HID for less money that still has a very reasonable run time. Again, $300 will build 3 heads that will pump out around 4500 lumens or 5 times as much as the HID. The system is heavier than the LED but it is much more powerful.