All the dynamo powered tailights below use a LED bulbs of similar brightness.  The differences in the lights are primarily where they’re designed to be mounted and the shape and number of the lights and reflectors.  I only stock “Plus” tailights, which designates the light has a capacitor which stores energy as you ride and keeps the light on while your bicycle is stopped.

Rack Mounted

Toplight Line Plus $35

Toplight Flat Plus $18.50

Fender Mounted

Seculite Plus $28

4D Lite Plus $30