Re: Yet another LED GU10 thread...

["Howard" <howardsixtynine@xxxxxxxxxxx>]

I don't tend to buy expensive halogen bulbs, so it wasn't a
particularly go=
od 35W one!
I'm a bit wary about the lack of glass front too. From the picture it
appea=
rs that there are exposed live terminals on the LEDs. I bought a similar
bu=
lb from CPC once, and a month later they sent a recall letter saying that
d=
ue to the lack of a cover glass it was dangerous and shouldn't be used.
I quite like the look of the "Next Generation" 5W lamp on
Brightlightz webs=
ite though. I might get one of those to try. Anyone else tried one?


--- In ukha_d@xxxxxxx, "Adrian Eaton" <adrian@...> wrote:
>
> Maybe it depends on which 35-50w bulb you are comparing it to? I have
> compared the 29 led one to a cheap 50w bulb and it seems as bright to
me.=
I
> haven't tried the 27 led version though but as you say I would be
surpris=
ed
> if it made that much difference.
>=20
>=20=20
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> I suspect that is why they don't come with a glass front to help with
hea=
t
> issues. I don't think they have come up with a perfect replacement yet
> unfortunately but this seems fairly good for now.=20
>=20
>=20=20
>=20
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
> Howard
> Sent: 17 October 2012 09:46
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: Yet another LED GU10 thread...
>=20
>=20=20
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> I actually tried a very similar lamp from Brightlightz a while back.
It w=
as
> a 6W, 27 x 5050 LED one. I thought it was rubbish and sent it back. It
wa=
s
> nowhere near as bright as a 35W halogen, let alone the 50W-60W that
they
> claim. The 29 chip one is supposed to be 20% brighter, but I'm
surprised =
it
> makes that much difference.
>=20
> Are they really 7W? I'm coming to the conclusion that dissipating more
th=
an
> 4 or 5W in a standard size GU10 while keeping the LED junction below a
> reasonable temperature is pretty difficult. I suspect that the 5W ones
th=
at
> I bought may have deteriorated so fast because the LEDs are running
too h=
ot.
>=20
> --- In ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
, "Adrian
> Eaton" <adrian@> wrote:
> >
> > I bought a few LED bulbs over the years and this one is the
closest to =
a
> > bight wide angle warm white bulb. They use 29 of the 5050 smd
leds whic=
h
> > seem to be fairly reliable. (my 21 led versions have lasted
18months so
> > far). They only drawback is that these bulbs don't come with a
glass fr=
ont
> > like others do, not sure why.=20
> >=20
> >=20
> >=20
> >
> http://www.brightlightz.co.uk/products/5-x-gu10-led-bulbs-7w-spot-lamps-w=
ith
> > -27-x-5050-smd-chips-in-warm-white-60w-halogen
> >=20
> >=20
> >=20
> > Packs of 5 work out =A36.39 each. Not cheap but I calculated a
rough
> breakeven
> > point is 12-18 months depending on usage compared to standard
50w. They
> are
> > actually slightly whiter than previous warm white bulbs which I
prefer.
> >=20
> >=20
> >=20
> > Adrian
> >=20
> >=20
> >=20
> > From: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
> [mailto:ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
] On Beh=
alf
> Of
> > Howard
> > Sent: 16 October 2012 14:26
> > To: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>=20
> > Subject: [ukha_d] Yet another LED GU10 thread...
> >=20
> >=20
> >=20
> >=20
> >=20
> > Sorry for starting yet another one, but maybe things have moved
on a bi=
t.
> > I bought six "9W" GU10s (actually 5W) from The Warm
Light Company earli=
er
> > this year. At first I thought they were great, and recommended
them on
> here.
> > They have now all failed, so I'm sending them back for a
refund.=20
> > Can anyone recommend an LED GU10 replacement, in warm white with
a widi=
sh
> > angle, that is as bright as a 50W halogen and will actually last
long
> enough
> > to justify the purchase price?
> >=20
> >=20
> >=20
> >=20
> >=20
> > [Non-text portions of this message have been removed]
> >
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> [Non-text portions of this message have been removed]
>




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