Re: Mains voltage halogens

["Timothy Morris" <timmorris@xxxxxxx>]

> -----Original Message-----
> From: Richard Malcolm-Smith [mailto:rich@xxxxxxx]
> Sent: 09 April 1999 01:00
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: Mains voltage halogens
>
>
> Timothy Morris wrote:
>
> > In advance of my Wall switch dimmers arriving, I decided to
> check out the
> > transformers used for my halogen lighting installation.
> Unfortunatley they
> > used electronic non-dimmable transformers. I've just had
> them replaced with
> > mains voltage equivalents from Osram. The great news is
> that the fittings
> > are direct replacements for the low voltage fixed, ie not
> eyeball fittings,
> > with 50mm bulbs.
>
> Do they fit into the existing brass/chrome/whatever metal
> ring recessed
> into the ceiling or do they replace the ring?

Replace the ring. The ring is actually just the base of the fitting, with
the bulb holder attached to it, protruding into the ceiling void. The two
fittings look almost identical (the ring is identical), the interface
between the bulb and the fitting is different presumably to stop an idiot
from using a 12V bulb in a 240V fitting.

>
> > For info, the bulbs are:
> >
> > Sylvania Hi-spot ES50s model GU10.
> >
> > 25 degree flood, 1150cd, rated life 2,500 hours.
>
> How many watts and what do they cost?

The ones I have are 50W. Unfortunately as they were fitted by an
electrician
who does a lot of work for my uncle, and I won't be seeing a bill. I can't
give you an idea on price, but I should imagine the fittings and bulbs are
priced comparably with 12V.
>
> BTW, some electronic transformers specify a leading phase dimmer -
> others laggin phase. I have tried both sorts on my X10
> dimmers and they
> all go flickery when dimmed - anyone had any luck at all with
> electronic
> transformers or will I juat have to go for magnetic ones?

Surely it will be cheaper to replace your fittings, than to buy new
transformers?
>
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