Rear lamp: B&M Toplight line brake plus

I don't think a brake lamp is very useful (see my ponderings), but I'm going to test it and see if my views/theories are correct or not...


StVZO approval no: K659 (on reflector) + K658 + K751
Mass: 53 g (with knurled washers and nuts).
Size: 93.5 mm width, 44.7 mm height, 17.4 mm thickness (so slightly thicker than the Line plus).
Light source: 2 red LEDs.
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, you can also use wires without connectors, remove the insulation at the ends, and clamp these in the lamp with a lever.
Construction: Plastic, housing cannot be openend, with galvanised bolts sticking out, stainless spring washers, and what seem to be chromed plated brass nuts (they have a slightly different colour than stainless steel nuts). This is not as good as the Line plus I bought long ago, which came with stainless steel nylock nuts. For the price this lamp is sold for, it should have come with all stainless bolts/nuts.

Price: ca. € 40,-


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


Tested from: 2012-2-24

Test indoors with bicycle upside down:

Test while cycling, with the taillamp mounted on the handle bar:

Design- and thus review considerations for taillamps

See Theory for taillamps.


To come.

For the price this is sold for, it should come with stainless steel bolts and stainless nylock nuts.

To email me go to the email page