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PostPosted: Tue Nov 02, 2010 7:54 pm 
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I like LEDs, and CFLs, (much more efficient than incandescent and halogen lamps) though the build quality of some of them is less than acceptable.

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PostPosted: Tue Nov 02, 2010 9:50 pm 
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Mooncat wrote:
I like LEDs, and CFLs, (much more efficient than incandescent and halogen lamps) though the build quality of some of them is less than acceptable.


I'm not sure the technology has reached the level at which I would be totally satisfied. Each of the new technologies has it's downside and problems - none of them are perfect and the manufacturers are equally guilty for over-egging their own products.

CFL are poor for dimming, don't last as long as claimed - especially when switched on/off constantly, and are no where as efficient as they claim (seems like they totally ignore power factor correction). LEDs are too expensive, aren't quite up to the required brightness (when spread-beam) and can fail if not properly cooled.

Sometimes the old way IS best (for now).

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PostPosted: Tue Nov 02, 2010 10:12 pm 
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There's a lot of posts going to go missing in a minute :lol:


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PostPosted: Tue Nov 02, 2010 10:16 pm 
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thescruff wrote:
There's a lot of posts going to go missing in a minute :lol:



Now there's a surprise....

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PostPosted: Tue Nov 02, 2010 10:30 pm 
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Energy saving light bulbs are fanruddytastic......................by the time you turn the light on and have your Tommy Tit, wiped and flushed, the light has only just started to radiate from the little curly wurly bulb. Saved a load of money over the years lol.


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PostPosted: Tue Nov 02, 2010 10:53 pm 
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Scruff was right.

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For this message the author mod5 has received gratitude : kellys_eye
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PostPosted: Thu Nov 04, 2010 6:53 am 
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Can you still buy the old light bulbs?

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PostPosted: Thu Nov 04, 2010 7:25 am 
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yep...but not the pearl jobs...only clear..

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PostPosted: Thu Nov 04, 2010 10:31 am 
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Energy savers have defineitly got better.

Personally I hate them but its a kneejerk reaction when you first switch over. You get used tio them afetr a while.

Can you get them in the small bayonet cand edison cap. I have a heap of lights that take these type of bulbs


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PostPosted: Thu Nov 04, 2010 10:38 am 
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DIY_Johnny wrote:
Energy savers have defineitly got better.

Personally I hate them but its a kneejerk reaction when you first switch over. You get used tio them afetr a while.

Can you get them in the small bayonet cand edison cap. I have a heap of lights that take these type of bulbs



Sbc, bc. ES and SES......all available

http://www.lightbulbs-direct.com/catego ... gy-savers/

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PostPosted: Thu Nov 04, 2010 11:03 am 
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Is the supposed mercury danger thingy a lot of bull :dunno:

as i broke one the other day and ran out of the room as i was worried about

what i have read about them:scratch:


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PostPosted: Thu Nov 04, 2010 11:09 am 
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wine~o wrote:
DIY_Johnny wrote:
Energy savers have defineitly got better.

Personally I hate them but its a kneejerk reaction when you first switch over. You get used tio them afetr a while.

Can you get them in the small bayonet cand edison cap. I have a heap of lights that take these type of bulbs



Sbc, bc. ES and SES......all available

http://www.lightbulbs-direct.com/catego ... gy-savers/


Thanks Wine~o,

They are dear enough. In my lounge I have 5 in the centre and 4 on the wall so 9 x £6 or £7 = not cheap.

You can get a regular ones for about 50p in homebase / LiDL always on promotion but always seem to be the low powered one


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PostPosted: Thu Nov 04, 2010 11:33 am 
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Actually, they are a lot cheaper in tool station

What’s the real ratio again for energy saver to incandescent, Toolstation claim 7w = 30w and 9w = 40w

The manufacturers are always generous with their claims on luminescence. I read on the web that the equivalent is

Incandescent bulbs Energy-saving bulbs
100W 1300-1400 lumens
75W 920-970 lumens
60W 700-750 lumens
40W 410-430 lumens
25W 220-230 lumens

A 9W Sylvania energy saver has 405 lumens so it ties up with the above chart (almost)


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PostPosted: Thu Nov 04, 2010 12:00 pm 
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Given the pf rating of most CFL bulbs (0.5 -ish) the generating companies have to push TWICE the amount of power to get the 50% you use.

Given your electricity bill is already 'factored' to take a pf value into account (0.9 I believe?) as soon as CFL bulbs become mandatory you can bet your life the electricity suppliers will 'adjust' the pf rating of all households and, guess what?, your bills will go up AGAIN.

All said, I do use them - I mean, at 10p a go (Tescos recently for any size/version) you would be mad not to. The real questionable part though is the GREEN aspect of them - are they or aren't they?

Overall I'd say most certainly NOT - lifetime CO2 taking into account manufacture etc...? Enery saving? again questionable as some people claim the heat given off by standard light bulbs actually makes a difference to that used in the home as a whole and that reducing the heat by using CFLs means you have to replace it by turning up the heating.... :dunno: That particular 'excuse' seems a bit difficult to prove although the theory is sound.

CFL and LED technology will prevail and we'll never look back - eventually - but for now the subject is too political to call.

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PostPosted: Thu Nov 04, 2010 1:31 pm 
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I remember in 2000, a brewery cellar tech guy coming to fit some new beer taps to the bar and they had the new (at that time) LED bulbs behind the brand name badge on each beer tap.
He said that the old type festoon bulbs were now obsolete and could be ditched.

I asked what happened when the LEDs 'blew' or stopped lighting up.

"No problem, they last for 30 years."

"Oh!" said I, "and who has been using them in a pub since 1970?"

"Don't be daft, they were not around then," sez the tech guy.

"Well how do you know they last for 30 years?"

"It says so on the box they come in!" :sad: :sad:

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