Bicycle Lights

Several people have praised bicycle generator lights. The problem is that the most powerful ones only light a tiny 3 watt halogen light bulb. This can help you be seen, but it is not nearly bright enough to light your way on a dark street. If they made it bright enough to be really useful, it would have too much drag. I use to commute with a 15W halogen bulb with a rechargeable battery, but have recently upgraded to a 30W system. White LED lights are not very bright and not that much more efficient than halogen lights, but they do last a long time and hold up to vibration. They are bright for the first 10% of battery life and then get dimmer, but stay on for a long time. The very expensive lights are HID (High Intensity Discharge). The main downside is that they need to warm up to reach full brightness and they cost $300 and up. I would love to see a low cost, efficient, and bright bicycle light made with a Compact Fluorescent bulb. It would have 4 times the battery life of a halogen and hold up to vibration.