Rear lamp: Basta Ray LED
Note: The company Basta was bought in 2000 by Axa, and they seem to be phasing out the name Basta. For example, the 'Axa Riff' used to be the 'Basta Riff'. I will use the original name.
Specifications:
StVZO approval no: K257 + K414
Mass: 74 g (without any washers/nuts).
Size: 114 mm width, 67 mm height, 50 mm thickness.
Light source: 1 red LED, with slightly opaque LED housing which diffuses most of the light (except straight to the rear, which then is bundled by a small lens on the inside of the housing).
Mounting method: On the rear rack, 50 mm or 80 mm bolt distance (centre to centre). To change the bolt distance you need to open up the lamp.
Cabling/connectors: There are 2 clamp connectors for bare wires.
Price: ca. € 5,-
Pictures:
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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
Experiences
Annoying for following traffic until which distance?: > 25m
Visibility: ?
Visibility by reflection: To be tested.
Ease of connecting wires: Simlpe for bare wires, a bit better perhaps than the original Basta ray although corrosion will be more of a problem. There is no provision for 2.8 mm plugs.
Design- and thus review considerations for taillamps
See Theory for taillamps.
Conclusion
Single LED as a point source, the LED's output is diffused but not spread out over a larger re-emitting area. So it stays a point source and gets too bright at close range for following traffic. Distance estimation is also impossible because of the point source. The clamp connectors are rubbish. Not recommended.
Last modified: Sun Mar 3 21:56:33 CET 2013
