I rode the other morning with a guy who has the Luxeon 3 Watt "Vega" from Light and Motion. (@ $170)
I was impressed by it's ability to be seen and to see by. I wonder how to replicate this in a DIY light especially the flasher feature. I think I would use this flasher year round not only the winter season.

Maybe for real world darkness this type of light with a second 3 watt Luxeon or a Halogen would be a complete solution. What does a DIY guy use to regulate wattage and a timer for the flash in something like this? I am guessing some sort of board with a microprocessor. What are some resources for a budding DIY Electronics person?

Vega
LIGHT SPECIFICATIONS

Width: 1.5” Height: 1.5”Length: 3.75”
Weight: 220g including bar mount
LED: 3 watt Luxeon™ Star Power Light Source 10,000 hours

Burn Times:

Light Output (lumens)/ Burn time (hrs.)
4 Watts- 85/ 2.0 hrs
2 Watts- 55/ 4.0 hrs
1 Watts- 35/ 8.0 hrs
2 Watts- 35/ 24:00 hrs (Flash setting)