This past weekend I got a new dynamo headlight and taillight installed on my regular commuter bike.
However, it being past the equinox, I hadn’t had the chance to ride the bike in the dark yet. The headlight is a Busch and Müller Lumotec Eyc N Plus. It is much brighter than my previous headlamp (a Shimano Nexus), and as you can see from this bad picture, the beam pattern has a sharp horizontal cutoff. It is rated at 50 lux. (the picture is bad because I’m taking it while braking so I don’t hit the garage door).
Here is a short video, showing both the headlight, and the taillight. Note that there is about a half beat delay between when I hit the brakes and the brake light goes on.
One remaining quirk: the headlight has an on/off switch, but pushing it doesn’t seem to make any difference.