On 2006-01-05, Flying Echidna (aka Bruce)
was almost, but not quite, entirely unlike tea:
> On Wed, 4 Jan 2006 17:59:37 +1000, "Katharine & Paul"
> <[email protected]> wrote in aus.bicycle:
>
>>ANyone used them at all?
>>
>>How do they go at lighting up the road (as opposed to just being visible).
>>
>>ANyone in Aus, or any website sell them?
>>
>
> I use a Cateye with 3 bright LEDs and my commute includes about 1 km
> of unlit highway in open countryside with no dwellings etc The LED
> light provides sufficient illumination to safely negotiate that even
> in flashing mode. The light is no worse than the light from the Cateye
> 2 C cell light it replaced.
It's all well and good in the dark without moonlight. Even 7 year old
LED lights did fine there (OK, I wasn't going above 20km/h either).
Where anything that I have ever seen, other than halogen, falls down,
is in streetlit areas. I still want to be seen amongst all the din of
the suburbs. I still want to see the potholes that are hidden by the
streetlights (no shadows from something lit vertically).
Streetlights ruin your night vision, and actually make visibility
worse. So you need something to be brighter than the streetlight in
the direction of the beam that your light emits. And the only thing I
have found to do this well, is my 15W niteflux helmet light -- the 5W
is barely adequate -- I only use that in leafy suburbs at night, and
prefer the 15W when going through places like the richmond shopping
strip.
It doesn't help that the bluish spectrum of a LED doesn't highlight
well against the bluish tinge of road pavement.
--
TimC
It's the _target_ that supposed to go "F00F", not the processor.
-- Mike Andrews, on Pentiums in missiles