Review: Solidlights 1203d (long)

In article <[email hidden]>,

SMS said:

I have three Bromptons, and none have dynamo lights. The cost and
reliability makes it an unattractive option. I'd literally spend more
on a hub dynamo wheel and lamp than the cost of the Brompton itself,
since I got the Bromptons in Taiwan when Brompton was licensing the
design ($225-$240 each, depending on the exchange rate at the time).

A poor argument, Steven, given the nonstandard nature of much of the
Brompton's design. While that's necessary to make it do what it does,
it does create a number of problems with retrofitting things like
generator hubs. However, bottle generators work just fine on Bromptons
and are quite popular in the UK.

SMS said:

Andy M-S said:

On Sep 18, 12:34 pm, SMS <[email hidden]> wrote:

Quoted message said:

Quoted message said:

If you're going to use dynamo lights then you really want to carry a multimeter with you at all times to facilitate troubleshooting.

Quoted message said:

Oh, now THAT is ridiculous.

Quoted message said:

Up until this point, I had considered this a civil discussion, but
that blows it out of the water. VOMs/VTVMs (or, if you prefer, DVMs)
are desk tools for the most part. I certainly have never needed one
to troubleshoot lights in the field!

Obviously sarcasm is difficult to communicate on Usenet. Sorry.

Anyway, given that the other poster couldn't go on his night ride and
had to troubleshoot the dynamo lighting system at work the next day,
it's not out of the realm of possibility to need to do have to do repairs.

Quoted message said:

I'd worry more about fancy battery systems; there's a place where you
want to know what your voltage is.

Actually you don't need to keep track of voltage on the fancy systems,
they keep track of remaining capacity for you. On the non-fancy systems
you want to keep track of time, and have an extra battery if you expect
to be out longer than one battery will last.

Quoted message said:

But in either case, I'd plan on carrying some backup lighting...

Very wise.

Problem with some of the fanciest systems is that for reasons beyond
my comprehension, the control electronics run off the same battery as
the light head. The result is that when power drops below a certain
level, the fancy electronics start doing Bad Things. Not unlike the
Soviet Moon rocket (the N-1) they are overly complicated and sometimes
shut things down while they still ought to be working...

SMS said:

Not selective at all. You were the one that brought up the problem with
your dynamo lights.

Oklay, so I'll bring up problems I've had with battery lights in the past...

Quoted message said:

How many non-techies have multimeters at work to
diagnose the problem and fix it.

Not very relevant, since I didn't use any info from the MM /to/ fix it.

Quoted message said:

It sounds like you never actually found
the cause of the problem, you just did the usual stuff of checking and
cleaning contacts and connections and bulbs. That's the problem with a
lot of dynamo setups, there are just too many points of failure. That's
one of the main reasons they're not used as much as in the past.

Well, let's see, my first rechargeable battery setup first failed with a
blown bulb, as has happened with dynamos too. Same problem, same cure.
The next failure was another thing I've had go wrong with a dynamo
setup too, which was a wiring break. Actually rather harder to fix
neatly on the battery system with more captive leads. Switches can get
dirty and lose contact on either and they're just as prone to problems
on either, so again you're being very selective with your highlighting
of problems.
You can get rid of the wiring problems with internal cells, but you
never see fit to mention that problem when endorsing separate
rechargeables. And moving to LED from bulbs is just as relevant for
generator setups as battery setups.

So a typical Scharf performance of selective highlighting of problems on
the things you're not so keen on, implying they won't happen to the
things you are so keen on.

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

Tue, 18 Sep 2007 14:28:27 +0100, Peter Clinch:

Quoted message said:

Peter Clinch said:

I just like knowing I have my lights at the ready any time I get on my
bike.

Inna famous-last-words stylee, I got on the Brom for a local trip last
night, and the front light didn't work... Changed the bulb, no joy, no
immediately obvious wiring gotchas, dis/re assembled a few times to
clean contacts, still no joy. So brought it in to work today and
attacked it with the multimeter. Everything should work, so I put it
back together and... it worked. <bof>

Which type of headlight? If it's a classic round Lumotec the brass spring
which makes contact to the center of the bulb might have beeb bent back.
Use a small screwdriver to bend it a little to the front again.

Rear light with double-wire connection? Check if it is connectec right -
expecially ground contact at the head lamp connected with ground contact
at the rear lamp.

Quoted message said:

So when dynamo setups do let you down they tend to do it in some degree
of style. OTOH, a pal had a fuse go Foom on her battery charger unit
earlier in the year, and left her similarly light free, so nothing's
perfect!

Lots of battery lights and gadgets are known for poor contacts. Some
modern LED-flashlights or even battery powered LED-lights switch themself
permanently off, if the battery looses contact while riding on rough
terrain. You have to manually operate the switch to switch it on again.
Problem is: Battery cells are heavy, contact springs are relative week...
Even last weekend we had this kind of problem with our Garmin Etrex Vista
GPS receiver - worth a few hundret Euro.

Andreas

In news:[email hidden],
Andreas Oehler <[email hidden]> tweaked the Babbage-Engine to tell
us:

Quoted message said:

Lots of battery lights and gadgets are known for poor contacts. Some
modern LED-flashlights or even battery powered LED-lights switch
themself permanently off, if the battery looses contact while riding
on rough terrain. You have to manually operate the switch to switch
it on again. Problem is: Battery cells are heavy, contact springs are
relative week...

Indeed. I have a Several of Cateye LED lights which all require a good
thumping to get them to wake up afte rreplacing the flatteries.

--
Dave Larrington
<http://www.legslarry.beerdrinkers.co.uk>
You can't have ham!

Andreas Oehler said:

Which type of headlight? If it's a classic round Lumotec the brass spring
which makes contact to the center of the bulb might have beeb bent back.
Use a small screwdriver to bend it a little to the front again.

The Basta (looks a bit like a round Lumotec) that Brompton now supply as
their standard front dynamo lamp. Was fine yesterday, I imagine just a
contact problem.

Quoted message said:

Lots of battery lights and gadgets are known for poor contacts.

I know that, and you know that, but Scharf is in denial about that...

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

In article said:

Alan Braggins said:

But how many of those millions of people are fitting cheaper Shimano
dynohubs into Bromptons, rather than standard width forks?

Fair point: not many. Most just use bottles, and find them
perfectly acceptable.

Which is why I said "at least if you have to deal with the sort of
slush where a bottle dynamo often slips". After all, you do have hub
dynamos on several of your bikes for a good reason even if you do find
the bottle acceptable on the 8-freight.

Alan Braggins said:

Which is why I said "at least if you have to deal with the sort of
slush where a bottle dynamo often slips". After all, you do have hub
dynamos on several of your bikes for a good reason even if you do find
the bottle acceptable on the 8-freight.

The primary reasons are no noise, no problems with bumping the mount and
other such convenience and aesthetic reasons.

A bottle can always be supplied with a serious wire-brush roller
designed specifically for slush. I actually posses such a thing but
have always found the variable spring tension adjustment on the basic
B&M is quite sufficient to cope with slush so haven't had to try it.

For regular riding in slush, I'd really say you can do better than a
Brompton, never mind better than a bottle dynamo! (btw, the SON on my
Brom is not an XS, 'cause they didn't exist when I bought it. Ben
"Kinetics" Cooper spread the fork a little and it doesn't seem to have
caused any problems).

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

Peter Clinch said:

SMS said:

Reliability wise, nothing beats an LED light that can run on AA
batteries.

Unsurprisingly, a remarkably selective piece of information from Scharf.
I can remember more than one ride I've been on where AA powered LEDs
used by more than one rider have run out of juice. At which point they
weren't lights any more, so were very easy to beat.

yup and as they don't come with battery meters it can be easy to run
them flat.

i do use them but on the commutor bike i have a number, low flying ufo
to borrow wafflecats words. it would be better to have a dynmo system
and probably that will get fitted at some point. it would be much more
useful.

snips

Quoted message said:

Pete.

roger
--
www.rogermerriman.com

Dave Larrington said:

In news:[email hidden],
Andreas Oehler <[email hidden]> tweaked the Babbage-Engine to tell
us:

Quoted message said:

Lots of battery lights and gadgets are known for poor contacts. Some
modern LED-flashlights or even battery powered LED-lights switch
themself permanently off, if the battery looses contact while riding
on rough terrain. You have to manually operate the switch to switch
it on again. Problem is: Battery cells are heavy, contact springs are
relative week...

Indeed. I have a Several of Cateye LED lights which all require a good
thumping to get them to wake up afte rreplacing the flatteries.

Back when I had a lot less clue than now, I went and got a set of
battery lights from Halfords, their own brand ones. They haven't worked
since the first time I took them out when it was raining. It tends to do
that a bit around here.

--
Don Whybrow

Sequi Bonum Non Time

'Tis an ill wind that blows no minds.

Don Whybrow said:

Back when I had a lot less clue than now, I went and got a set of
battery lights from Halfords, their own brand ones. They haven't worked
since the first time I took them out when it was raining. It tends to do
that a bit around here.

Yes, there are definitely a lot of sub-par lights in terms of quality of
construction, though this spans both battery and dynamo lights. It's
rather ironic that the only place to buy dynamo lights in most parts of
the U.S. is at drug stores and hardware stores, you'll almost never see
them in a bicycle shop. Of course these $10-20 toys are not going to
work very well, i.e. "http://tinyurl.com/yvafzj".

Don't buy bicycle lights at a store where they sell aspirin or paint.
Except of course in Japan, where the department stores sell an amazing
variety of bicycle accessories.

SMS said:

Yes, there are definitely a lot of sub-par lights in terms of quality of
construction, though this spans both battery and dynamo lights.

I imagine it also includes homebrew units. ;-)

Quoted message said:

It's
rather ironic that the only place to buy dynamo lights in most parts of
the U.S. is at drug stores and hardware stores, you'll almost never see
them in a bicycle shop.

It is ironic. It comes mostly from the fact that most bicycles in the
US are used only as toys. Vehicles that are used for practical
transportation have headlights that are always ready to use, no
regular maintenance required. That includes no battery charging.
(Can you imagine having to do that for your car's headlights?)

Quoted message said:

Of course these $10-20 toys are not going to
work very well, i.e. "http://tinyurl.com/yvafzj".

Some of them do. I set up a commuting bike for a person who I knew
would never keep batteries charged or replaced. I put one of those
inexpensive generators on. The only upgrade it needed was a halogen
bulb to replace the stock vacuum bulb. It's lasted for, oh, about 8
years now, I think.

Quoted message said:

Don't buy bicycle lights at a store where they sell aspirin or paint.
Except of course in Japan, where the department stores sell an amazing
variety of bicycle accessories.

I was in Austria recently, and found a wide selection of bike
generators available in a large car parts & bicycle parts store. And
yes, they sold paint as well. Given the prices and brand names of the
generators, I'm sure many of them were fine. Remember, this is a
country where people know and use these devices regularly, for their
transportation bikes.

(I really hate to disagree with almost everything SMS says. IOW, I
wish he were actually correct more often!)

- Frank Krygowski