There's no picture of the headlight.

For those who are not sick of my blog post, I have a very nice system that cost me about $160 to build. I build my own wheels, which saved me some money. You can get a front wheel with a Sanyo hub for only $100 nowadays! That's an unbeatable deal.

My dynamo system

No system is perfect, and it's true that it's not easy to move dynamo lights from one bike to another. I have a battery powered headlight that I put on the bikes that don't have dynamo systems, but I usually ride the dynamo-lit bike. It's the most convenient thing, because (1) I don't have to think about batteries, and (2) I don't have to mount or dismount the lights.