Inexpensive LUX meter from China to measure your bike lamp's output

On 2/22/2018 5:09 PM, Andre Jute wrote:
On Thursday, February 22, 2018 at 4:35:07 PM UTC, Jeff Liebermann wrote:
On Wed, 21 Feb 2018 16:52:57 -0800 (PST), Andre Jute
wrote:

Even at such an attractive price, I'm not buying the meter, Jeff.

I consider it beneficial if those recommending a product would also
have some experience using it.

See my original post at the top of the thread, where I say, "No recommendation".

For health reasons, I no longer go for those middle watches of
the night rides, as no one will go with me and it's stupid for
me to ride alone on totally empty lanes. So I have nothing
to measure for.

I have a similar problem. I don't ride at night. Too dangerous
around here and my night vision is slowly deteriorating. However,
this has not stopped me from commenting on the topic and testing
various lights.

In any event, by subjective measurement a la Roger's post,
I judge I already have what on balance I consider BUMM's best
lamp, the first series Cyo R (I also have reflectorless
version but it isn't as good in lanes as the R, and I have
the Fly-E with supposedly the same optics but with a very
nasty hotspot), so I'm not even in the market for new lamps.

Et tu Jute? I was under the delusion

I don't know any engineers with enough imagination to suffer delusions. They stop at misapprehensions. If you want to see delusions in action on a mass scale, check the so-called "resistance" in your backyard. The difference is that a misapprehension can be corrected, but a delusion is a pathology that can at best be ameliorated.

that we were discussing
instruments and methods of measuring light output and not a review of
available products. Oddly, every time (and I do mean every time) I
bring up the subject of light measurement, the discussion immediately
drifts away from measurements and gets mired on the mud flats of
anecdotal experience and subjective "calculation". It would seem that
the participants greatly fear making measurements and the assignment
of numbers to their favored bicycle headlight, as if this would
somehow diminish the value of their illuminating experience. I wonder
if it is even possible to discuss light measurements without the
apparently incurable product endorsements, which incidentally is only
slightly less prevalent in the flashlight forums.

Oh, I don't back away from abstractions where relevant. But, on a "tech" conference with a predominantly American membership, what do you expect? Thoughtful hotrodders? Pull the other one.

I only need one tool. Anything within reach can be used as a hammer.

You and Clarkson both. I'm an intellectual: as a reflex, I reach for my trusty Pickett pocket slide rule. The saddle-leather slipcase is worn almost yellow, but I feel naked without it, and they don't make them like that any more, though my favorite everyday watch, which is decades younger, has a perfectly good rotary slide rule on its bezels as a backup:
http://coolmainpress.com/andrejutewatches.html#Navihawk

Andre Jute
God bless the instrument makers



You're right, The Resistance is a bunch of loons:
http://socialistresistance.org/brexi...e-goes-on/8534

And not just that one either!
https://www.theguardian.com/politics...dence-movement

Even those amiable Canadians went through their own:
http://mhs.mb.ca/docs/mb_history/29/...sistance.shtml

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971