I do almost all of my training rides at 5am and now it is quite dark at that hour. I bought a Light and Motion HID light in order to see and be seen. The price was $250 off the internet and it has been very reliable for the 3 months I've used it. I have a spare helmet that I just leave the light on by my bike. In the morning it's just a matter of grabbing the battery off the recharger, plugging it in, putting it in my jacket pocket and going. It is very bright, I have complete confidence that I will see any road hazards and I will be seen by motorists. When I'm done I just put the battery back on the charger and it's ready for the next morning. If you can afford it this is the way to go.