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Old February 11th 18, 04:55 PM posted to rec.bicycles.tech
Joerg[_2_]
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Default Battery Replacement on Lights with Internal Li-Ion Batteries

On 2018-02-10 18:25, John B. wrote:
On Sat, 10 Feb 2018 19:25:57 -0500, Frank Krygowski
wrote:

On 2/10/2018 4:03 PM, Joerg wrote:

Everyone installing a high-powered LED light on a bicycle, front or
rear, should walk towards their lit bike during daylight and then again
at night. If the light is annoying, do something about it.


I agree with this.

But I'd add, before buying high powered LED lights, check out any more
ordinary lights you have in a similar way. Have a friend ride your bike
as you observe. I've done this many times with friends.

Contrary to current myths, you do not need super-powerful lights to be
plenty visible. Any headlight that shows the road sufficiently will be
perfectly visible to motorists, and taillights need far, far less power
to make you safe.



I had plenty of opportunity to compare StVZO tail lights versus the over
there "illegal" lights such as PDW DangerZone or Radbot. HUGE difference
in visibility. This was as a motorist in Germany. Since I am also a
cyclist I paid particular attention to bicycle equipment because I
wanted to know. I also wanted to see if the purchase of some lights from
there would make sense since those wouldn't need electronics up front to
connect to the 8.4VDC power bus on my bicycles. My conclusion was that
it does not.


I've read the comments about blindingly bright bicycle lights and
always wondered about it. Basically, sitting on my bike my eye line is
higher then the driver of a Toyota - ...



Unless you are sitting in an americanized Toyota Tundra with extra big
tires :-)


... I've checked this a number of
times - thus a light that was blinding to me, sitting on my bike, must
certainly be blinding to a guy driving a Toyota.... which doesn't seem
like a good thing to do, at least blinding the other driver seems
counterproductive to being seen.

What I've always done with bar mounted lights was to set the light
horizontal which puts the beam at almost exactly the same height as
the stop light lenses on my example Toyota Taxi.

So far, at least, I've had no indication that auto drivers didn't see
me, or see me in a timely manner.


The trick is, when you walk towards your bicycle, move a bit towards the
squatting position, just enough to get to the typical seat height of a
sports car like a Mazda Miata. If it doesn't blind then, you are ok.

--
Regards, Joerg

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