A couple of points on the LED's being discussed.
The Vision X Solstice Solos are a 10 watt light producing 900 lumens of output, more than double the 400 lumens for the other setup the guy introduced.
Vision X Solstice lamps are manufactured for use on motor vehicles, originally for strapping to the front of 1000bhp trophy trucks racing in Baja. Consequently, the have a practically unbreakable poly-carbonate lens and a very solid cast aluminium shell, so when your mate passes you and fires rocks at you, your lights wont be obliterated. A very lightweight unit is great on a pushbike lid but is no where near as rubust. They also include a very simple but tough 1 bolt bracket that fits practically anywhere, or particularly on our bespoke XT660z Tenere mount (
see here)
Another important point is that Vision X Solstice Solos are designed to be wired into a vehicles electrical system, so will accept between 9 and 50 volts DC. They come with a 2 wire connector and wire straight in, no messing about with adapters and the like.
If you do want to run a battery powered helmet setup, a Vision X Solstice solo, plus a 3 hour battery pack including a charger pack and a helmet/bar mount kit will set you back �205.39, not really that far off.
There are loads of mountain bike helmet light kits available at similar prices, but for mounting on a motorcycle and running off the bike i'd suggest a vehicle specific unit is far better suited.
But i would say that...
Heres a pair mounted on my XR650R, with the standard headlight uprated to a 55w unit for comparison
and below a pair mounted on Mark's CRF250x
