Busch & Muller Toplight Line Small Rack Mount Tail Light 720-106

This is a big picture of a very small taillight. The mounting holes are 50mm apart, just like most other Busch & Müller taillights. The single LED glows bright red, so don't be fooled by the clear lens. And the optics in the lens spreads the red light across the width of the lens, so the driver behind you sees a lot more than just a point source of light. This has a standlight, so it will stay lit for several minutes after you stop.

Unlike a few other B&M taillights, the Toplight Line Small cannot handle the full output of a dynamo without a headlight in the circuit. So, never wire this taillight directly to a hub dynamo, as it can be damaged if the headlight is switched off.