Originally Posted by
fietsbob
Busch And Muller Taillights use a fresnel lens to spread out the light from 2 LED's to have a Bright Light in a line and light up the rest of the surface as well .
Here's the Battery model
Busch & Müller: TOPLIGHT Line
I use the Dynamo One..
I have the Toplight line Plus and the Line Plus brake. Piss ass weak **** light that's relegated to bikes that don't get ridden often. Great for Western Yur-rup, but really crappy for North America.