Anyone ever checked out the BLT products?
4.5 hour HID
or their 6 hour 12 watt LED that's nearly as bright as a 12 watt HID
Except that unlike the HID, the LED is almost as bright with a 15 year bulb life and it's shock resistant.
They have a 4 watt LED with the equivalent of 20 watts of halogen and a whopping 20 hours of battery life, that's what I'm interested in for commuting. Use all week on 1 charge. And nearly invulnerable to crashes, of which I've had my share and broken 4 halogen bulbs, proprietary ones (not MR11) from light & motion, at $20 a pop or $80 of lights. If I used HID, that'd be $300 of replacement bulbs.