Re: Anyone moved to LED Lighting?

["Josepi" <JRM@xxxxxxxxxxxx>]

Halogen are more efficient than tungsten incandescents, also, but the bulbs
still get much hotter.

Bad argument and evaluation for efficiency. CFLS have a much larger surface
area. (eg. fluorescent tubes stay much cooler despite higher wattages). LEDs
do not get that warm as they don't produce enough light to bother with used
singly. If I used a 15 watt incandescent it wouldn't get that warm either
with heat sinc on it.

Are your units the phosporescent type of LED units?

"John Perry" <jpnews@xxxxxxxxxxxxxxxxxxx> wrote in message
news:lqvag59p65t7kpefgm3co77uotsvv3g8bt@xxxxxxxxxx
> On Tue, 17 Nov 2009 16:42:50 -0500, "Josepi" <JRM@xxxxxxxxxxxx> wrote:
>
> LOL, maybe I should have used 16-LED etc.  I have in total 116 GU10
> fixtures.
>
> I have to disagree the "testing"; can you cite where the results are?
>
> The fact is incandescent are too hot to touch; CFLs get very warm and
> LEDs are hardly warm to the touch.  So relying on the "Law of
> conservation of energy" LEDs should be more efficient.
>
> I have certainly noticed that LEDS are much better now than they were
> 2 years ago; your statement may well have been true then.
>
> I'll probably put some photos up on my site later, but not until our
> new heat pump based ventilation and heat recovery system gets
> installed next week.
>
>
>>Am I correct in assuming you have over 200 fixtures for these LED lights
>>or
>>is there some other format used?
>>
>>
>>Testing has shown white LEDs to be less efficient than CFLs and hardly
>>much
>>more efficient than incandescent lighting. Apparently there was a
>>technology
>>change a few years back that I am not familair with. I believe these use a
>>phophourescent screen technology to re-emit the light in the colour
>>desired.
>>
>>
>>
>>"John Perry" <jpnews@xxxxxxxxxxxxxxxxxxx> wrote in message
>>news:ip26g5pbol5n8ackjlh2ta8v360p28tk3n@xxxxxxxxxx
>>>I have tried a range of GU 10 LEDs.
>>>
>>> 16 LED units using 2W, and totally inadequate.
>>>
>>> 48 LED units imported from China; they had a greenish hue, but
>>> inadequate brightness and too green/blue.
>>>
>>> 60 LED warm lights that give the right colour balance, but not really
>>> bright enough. No failures in 2 years, we use some for background
>>> lighting.
>>>
>>> 60 LED daylight units that are too white/bright. No failures in 2
>>> years.
>>>
>>> 78 LED warm units, these are easily bright enough and equivalent to
>>> 20W halogens.  We use around 40 of these.
>>>
>>> 78 LED daylight units, again easily bright enough, but too white and
>>> un-natural.
>>>
>>> 12 LED SMD warm; these are excellent, very bright and we use about 40
>>> of these.  These are slightly brighter and whiter than the 78 LED warm
>>> units.
>>>
>>> 12 LED SMD daylight; these are excellent, very bright and we use them
>>> in the kitchen.
>>>
>>> 16 LED colour changing; we use these at Christmas time for fun.
>>>
>>> No interference with X-10 so far, but I think they are killing the
>>> signal between my wireless weather station and external sensors.
>>>
>>> Sorry for the delay in replying.
>>>
>>> The units barely get warm, and use less energy than CFLs as the CFLs
>>> get hot.
>>>
>>> All GU10s are in fire cowls, but covered with fibreglass with no
>>> cut-outs as required for halogen.  If 50W halogen units are put in our
>>> housings, we would have a serious fire risk.
>>>
>>>
>>> On Sat, 31 Oct 2009 00:26:07 -0400, "Josepi" <JRM@xxxxxxxxxxxx> wrote:
>>>
>>>>Do you have any efficiency specs onthese unit you are using? Some
>>>>previous
>>>>test found white LEDS to be much less efficient than CFLs. IN fact
>>>>people
>>>>found white LEDS to be less inefficient than incandescent bulbs.
>>>>
>>>> I understand some new technologies have changed that in the last few
>>>> years.
>>>>I would be interested in what technology you are using and what the
>>>>colour,
>>>>brightness and efficiencies are if you are aware. You seem happy with
>>>>them
>>>>so they must be half decent.
>>>>
>>>>
>>>>"John Perry" <jpnews@xxxxxxxxxxxxxxxxxxx> wrote in message
>>>>news:on4me5plinjq3h212fa2gq9eebd5gk5pt3@xxxxxxxxxx
>>>>> Reason is, no cost saving to control them.  I have tries CFLs, but
>>>>> they get too warm; the LEDs run virtually cold.
>>>>
>>>>> On Mon, 5 Oct 2009 12:20:36 -0400, "Robert L Bass"
>>>>> <Sales@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>>>>>From the gentleman's first post: "I'm very impressed with the results
>>>>>>and
>>>>>>have
>>>>>>decided not to use X-10 to control them."
>>>>>
>>>>>>"Robert Green" wrote:
>>>>>>> Sure.  Have you tried them with X-10?...
>>>>>>
>>>>
>>> --
>>> John Perry
>>
> --
> John Perry
>
> http://www.redoak.co.uk