Rear lamp: Herrmans H-track


StVZO approval no: K778
Mass: 58 g (with nuts).
Size: 96.5 mm width, 59.9 mm height, 19.8 mm thickness.
Light source: 3 x red 5 mm LED.
Mounting method: On the rear rack, 50 mm bolt distance (80 mm is also available).
Cabling/connectors: There are 2 connectors for 2.8 mm female plugs as used on standard double strand wires you can buy from a bike shop.
Construction: Plastic, with stainless steel bolts sticking out (nice!) and stainless steel nuts.

Price: ca. € 15,-


The H-track at 10m and at 30m, a small test to see if I could make out the shape of the ring of light at such a distance. And in reality and in the photos it only works for small distances...

Beam shots

See the camera settings page for more on the setup and settings to make pictures of the beams of taillamps.

Out of a corner (showing how much light is cast upwards, forwards and to the sides) [ F3.9 & F1.8 ]:

Wallshot (showing the beam pattern):

Visibility from various angles (0°, 45°, 90°, 135°) [ 0.5m, zoom x3, F3.5, ISO80, 1/250s & 1/60s ]:

Comparing taillamps


Ring of light similar in style to B&M's Toplight line plus. Nicer than the Toplight flat plus for traffic following you. This ring of light gives a lot of light and excellent visibility, the best of any tested so far (this before I had tested the Philips Lumiring and Spanninga Brasa) when looking at all directions (so not just straight to the rear). A lot of the light from the LED shines directly as a near point-source into your eyes from the top middle, and this this a pity as it's not needed for visibility, makes estimating distance hard and is very annoying for following traffic.

Annoying for following traffic until which distance?: ≥25m
Visibility: Good.
Visibility by reflection: To be tested.
Ease of connecting wires: Good for 2.8mmm plugs, there is no other method available to connect wires.

2012-12-8: A contact in Taiwan mentioned that he thought the H-track is pretty good there in city traffic (better than the Philips Lumiring) where the traffic is almost like that in Vietnam (lots of scooters). More on this soon.

Design- and thus review considerations for taillamps

See Theory for taillamps.


The H-track is a good concept of using a ring of light around the reflector giving a large illuminated area but it's let down by annoying direct light from the LED. Not recommended.

Addition 2017-1-21: For those who have an H-track and want to try to modify it: Long ago I opened the housing of the H-track (using a screwdriver to pry it open bit by bit along the edge as the glued bond isn't that strong) and then I desoldered the middle LED. This removes the annoying point source and it's then a good taillamp... (power use is also lower...). You can use a glue from a hobby shop (for plastic model building) to glue to the housing back together again.

To email me go to the email page