Andrew Thorne <
[email protected]> wrote in message
news:[email protected]...
> >- - - These were bulbs I had already. I haven't been able to find the
right
> >voltage/wattage/beam angle ones yet, and the ones I've seen that come
close
> >are 6 -10 quid _each_
> >
>
> My bulbs were about $8US each at Home Depot.
>
> >My ideal setup was going to be 15/10 helmet, 20/20 bars, and I've been
>
> Right now I'm running a Niterider 15/8 (MR11) on the helmet. And a dual
beam
> (MR16) of 20W low and 35W high. Both narrow spots. The combo is pretty
much
> perfect for my taste.
Sweet.
> >meaning to build a PWM regulator, so I can hook the batts up in series,
and
> >efficiently drop the voltage down to about 13.5/14 volts (over-volting - this would give me both
> >more batt. life, and more light, at the slight expense of bulb life.
>
> Getting fancy, eh? I suppose you've been spending time over at
bikecurrent?
I've visited, but this was an idea I'd had before I built the lights, I just involve myself in so
many projects at times, I forget to get some of them kicked off properly.
> >P.s. - I have two makes of these 50 watt 24 degree bulbs, some Osram, and some Phillips - the
> > Phillips ones, which I thought would be superior, are _shite_. They give less than half the
> > light of the Osram ones, and draw fractionally more current, and from what I can tell, have
> > the same or similar life expectancy.
> >
>
> I've been buying GE bulbs and have been generally happy with them. I did
get
> one 20 W that was considerably dimmer than the others I'd bought, with a
much
> more jagged and irregular beam pattern. All the others have been bright,
white,
> round, and even. Haven't burned one yet, either.
Hmmm, well both the Phillips bulbs were the same - ****, and all 6 or 7 of the Osram ones are
equally good, so I think it's the make in this case.
I will get around to a lighting specialist at some point, and see what spec. MR16's they can
lay hands on.
Cheers.
Shaun aRe