Re: new lightbulbs

"Elder" <carl.robson@xxxxxxxxxxxxxxxxxxx> wrote in message
news:MPG.2179f6d43b8472e9989a1c@xxxxxxxxxxxxxxxxxxxxxx
In article <470a5f1b$0$21094$da0feed9@xxxxxxxxxxxxxx>, mrdoki@xxxxxxxxx
says...

"JB" <nil@xxxxxxxx> wrote in message
news:5m2653FbevotU1@xxxxxxxxxxxxxxxxxxxxx

10 lamps from each manufacturer (I tested over 100 H1 lamps in total).
Testing was in an integrating sphere with an Ocean Optics spectrometer.
I
agree that filament (or arc) location accuracy is absolutely critical
in
automotive optics. A mm off axis and the beam quality becomes total
***.
Anothe problem with HID retrofits is that the actual luminous portion
of
the arc itself is substantially larger than that of a filament lamp,
causing poor focussing and softening of the beam.


Did you test any 100W bulbs? It seems to me that they'd give pretty
similar
output to a HID lamp but obviously be rather cheaper... OTOH as they're
not
E marked, quality could be rather variable.


Problem with true 100watt bulbs is, a lot of the time the wiring can't
handle it, the lights get no brighter but the wiring melts, or the
headlights melt because they are made of plastic.

Or the lens, or any / all of the above. Quite funny when you tell a moppet
Ka owner not to do it, he does it anyway, then chunters at length about
cruddy build quality / headlights / non-E-marked bulbs, but a simple link
shows a dozen people saying not to do it...

Difference between hids and 100 watt lamps is hids produce less heat and
produce better light for less power used.


There's a bit more to the difference than that, though. It's a different
frequency of light chucked out.

--
The DervMan
www.dervman.com


.

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