Eco-Floods

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Just been sat here trying to find where to buy these 26W eco-flood external flood lights.
Couldn't find anything on CPC, where'd ya get 'em and are they expensive?
cheers Richard
-- Richard Sampson
email me at richard at olifant d-ot co do-t uk
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http://62.49.135.52/lew/default.php?cPath=3&osCsidqc97f930f92a06c15d9d6d730675a25
Andy Pevy
--

We were always told that a million monkeys typing for a million years
would eventually produce the works of Shakespeare. Now, thanks to the
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wrote:

external
expensive?
http://62.49.135.52/lew/default.php?cPath=3&osCsidqc97f930f92a06c15d9d6d730675a25
Hi,
Hope you Don't mind me using this thread...
I am interested in changing my 4 300W halogen flood lights with a more meter friendly alternative
I want white light, so I guess Sodium is out of the window
The lamp mentioned above looks as if it has a fluorescent bulb - I was under the impression, if these got cold, they produce a lot less light - is this correct?
Thanks!
Sparks...
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under
They take a while to warm up, and are not suitable for "instant lighting". Once warm, no problem.
-- Adam
snipped-for-privacy@blueyonder.co.uk
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Ah, that;s interesgint to know, thanks.
Friend is looking at them for a security ring around his house (way out in the wilds, in Aberdeenshire, before anyone says anything about neighbour nuisance...). They may or may not be suitable for such switched applications then.
I'm looking at them to replace my 300W unit that I just use when needing to do work outside in the darker months. For me, then, the warm up time isn't really an issue, but running costs are, so these would be ideal (as long as the light output is sufficient, and posts from others in the past suggest that it is sufficient).
thanks Richard
-- Richard Sampson
email me at richard at olifant d-ot co do-t uk
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yup. Mercury is probably the next best, but they give a nasty cold white light, which may not suit you.

Yup. And depending on the drive circuit type, some wont light at all when its real cold.
Qs:
would lower power lighting be OK? If so, either swap the 300w tubes for 150w ones, or go to low voltage halogen which will go down to 20w bulbs witrhout loss of efficiency or life.
The other approach is to look at having them only on some of the time, ie on PIRs, photocells, timers, etc.
Finally, if youre really desperate, there's LED lighting. You may not get to see much, but you'll be able to tell where things are, and your leccy bil will simply disappear.
Regards, NT
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so will your bank balance
--
Tim Mitchell

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On 23 Oct 2003 05:25:38 -0700, snipped-for-privacy@meeow.co.uk (N. Thornton) wrote:

High intensity LED lighting is less efficient than fluorescent.
--
Peter Parry.
http://www.wpp.ltd.uk/
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Tim Mitchell wrote:

I just worked it out. A 1w white light made from coloured LEDs costs about 6GBP, ie 9USD. 2 watts ill light a room, dimly. And such a bulb will have a life expectancy of around 100x that of filment bulbs. So really, its good money wise. And the leccy bills might as well not exist.
Peter Parry wrote:

Maybe, but it still eats way less power. The only downside with LED lighting is youre stuck with extremely low power, like 2 or 3 watts max. Beyond that it starts to cost.
Regards, NT
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That may be so in the true spirit of DIY, but if you try to purchase a commercial LED lighting product you will find that the prices are many times higher than conventional products. As it becomes more popular, the prices will become more reasonable.
example: one of those spike in the ground garden spotlights, made by Ring lighting. Halogen version 5.99. LED version, containing 6 white LEDs, 50 quid.
--
Tim Mitchell

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writes

Theyre easy enough to make, and can be fitted into any mains fitments you like.
Personally I would avoid white LEDs, as light output drops heavily over time, and they're pricey. Mixed coloured LEDs are a much more practical way to get white, and its a much better white than the blue and yellow that white LEDs produce.
Regards, NT
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On 23 Oct 2003 12:20:08 -0700, snipped-for-privacy@meeow.co.uk (N. Thornton) wrote:

Efficiency (lumens per Watt) of some common lighting methods is :-
Low pressure Sodium 180 High Pressure Sodium 125 Fluorescent (T8) 95 Metal Halide 90 Mercury 50 White LED 25 Quartz Halogen 20 Incandescent 20
LEDs have advantages where their small size, long life, ruggedness and directional output are needed but in terms of energy efficiency have a long way to go.
--
Peter Parry.
http://www.wpp.ltd.uk/
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James Thomas Engineering are promising a government eco-grant for 50% of the cost of installing their LED product, based on its energy efficiency. http://www.pixelpar.com (though it doesn't seem to work at the moment)
--
Tim Mitchell

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On Fri, 24 Oct 2003 13:51:13 +0100, Tim Mitchell

What have government "ecogrants" got to do with reality?
--
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http://www.wpp.ltd.uk/
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If one isn't so fussed about the colour of the light LEDs can be more efficient, I've seen figures of 50 to 75 lumens per watt quoted for "Super Bright" LEDs. Cree have developed white LEDs with efficiencies of up to 75 lumens per watt and in normal packaged form are getting 62 lumens per watt. I couldn't quite work out whether these are available commercially yet though.
--
Chris Green ( snipped-for-privacy@x-1.net)

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under
this
Mine never failed to light last year, but it never got colder than about minus 8 and as my lights are dusk till dawn they would probably have lit before the temperature dropped that low. But I totally agree that these lights may not light in very cold temps.
-- Adam
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Hi Rich. Lots of external lights will take 26w CFLs. Just check for enough room for the bigger bulb, and go for BC base not ES.
Regards, NT
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external
expensive?
Ah, fine for the bulkhead fittings and lanterns, but I really need to replace a flood with a flood here.
thanks, tho, you've given me an idea what to do with the CFL lamps that I have knocking around the house. For some reason the light that they give off causes me to have real downwards mood swings, so I can't use them internally (even in the fittings that have enough room for them). Think I'll use them to install low power mood lighting around the patio/garden, for use when the flood isn't appropriate....
cheers Richard
-- Richard Sampson
email me at richard at olifant d-ot co do-t uk
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