Re: GU10 LED's

["Simon Coates" <simon@xxxxxxxxxxxxxxxxx>]

Darren,

Most cost effective and efficient way would be to retrofit low voltage
lamps with decent transformers.
Pros: Better light output, reduced running costs, excellent colour
rendering, excellent appearance, smooth dimming down to 0%, and cheap.
Cons: probably not as high tech as you are wanting?

Also, it would be impossible to manufacture a reliable LED replacement of a
50W GU10 lamp.
Only other alternative is to buy some suitable LED downlights, but they're
going to be physically bigger - as you'll need at least a 7W fitting and
the heatsinks tend to be large.
Have to agree with Phil on this one - nice post Phil :o)

Regards,

Simon


----- Original Message -----
From: Phil Harris
To: ukha_d@xxxxxxx
Sent: 01 February 2010 23:03
Subject: RE: [ukha_d] GU10 LED's



Basically if you go back through the various discussions on here then every
one has been regarding some new LED fitting which is advertised as being a
direct replacement for existing GU10 fittings and the upshot has been one
of
the following:

1) Not enough light output.
2) Inappropriate colour temperature.
3) Unsuitable beam spread/angle.
4) Non-linear dimming.
5) Not fully dimmable across the entire range 0-100%.

It may well be that the fitting you have flagged up is the answer to all
our
prayers (I'd be as happy as anyone else if it was) but unless someone has
tried it then no-one will know and so far all the fittings that people have
tried and commented on on here have been unsatisfactory - hence my simple
answer to the original question which was a brief distillation of all the
extensive discussions that have taken place on here on this for the last
few
years. :-D

Phil

> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Adrian
> Sent: 01 February 2010 22:32
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] GU10 LED's
>
> what about these, not tried them but they suggest they are dimmable
>
> http://www.lyco.co.uk/Light-Bulbs/Energy-Saving-Bulbs/LED-
> Lighting/GU10-LED-Lights/sc1309/p8196.aspx
>
>
> Phil Harris wrote:
> > OK - the sum total of every discussion that there has been on
here
> with
> > almost monotonous regularity where people want to find an LED
> replacement
> > for incandescent bulbs on electronic mains dimmers is that there
> currently
> > are no suitable replacements.
> >
> > Alternatively - "no".
> >
> > I stand by my very simple reply to your very simple question. :-D
> >
> > Phil
> >
> >
> >> -----Original Message-----
> >> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
> Behalf
> >> Of Darren Karp
> >> Sent: 01 February 2010 21:41
> >> To: ukha_d@xxxxxxx
> >> Subject: RE: [ukha_d] GU10 LED's
> >>
> >> Do us a favour Phil. If you have no constructive comments
then
> please
> >> don't
> >> bother posting. Waste of everyone's time.
> >>
> >>
> >>
> >> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
> Behalf
> >> Of
> >> Phil Harris
> >> Sent: 01 February 2010 20:39
> >> To: ukha_d@xxxxxxx
> >> Subject: RE: [ukha_d] GU10 LED's
> >>
> >>
> >>
> >>
> >>
>
>
>
> ------------------------------------
>
>
> Yahoo! Groups Links
>
>
>




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