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PostPosted: Wed Jan 02, 2013 10:58 pm 
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there is minimum light going up towards the ceiling as the total illuminated area is virtually flat although some bounces off the glass and travels backwards but will be in the region off perhaps 5%

corn type bulbs will light similar to a normal bulb spread wise
http://www.ebay.co.uk/itm/9W-10W-12W-18 ... 2ec1e80aea

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PostPosted: Sat Jan 05, 2013 10:08 am 
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I've ordered a couple of corn type SMD ones and one of those half globe type ones.
Will post some reviews once I get them in about a month :)

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PostPosted: Sat Jan 05, 2013 3:17 pm 
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Surely it's better to simply switch off lights which are not in use?

I only need light at all in whatever room I'm occupying at the time, say 100W maximum at any one time. I'm only in the house and awake for maybe 4 hours per day on average, and in the summer it's light until virtually bedtime so only really need that level of artificial lighting for at most 6 months of the year. On top of that, I'm probably away a total for around 4 weeks during the winter months, so now only need lighting for 5 months of the year.

So my typical annual consumption would be 100 x 4 x 150days = 60kWh. At 15p per kWh that's only £9 - not much scope for energy efficient bulbs to pay for themselves there!


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PostPosted: Sat Jan 05, 2013 5:32 pm 
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if you live in a terraced house or with trees everywhere like i do
i dont have to sit in poor light all day worrying about the bill i can leave the light on
as an aside
i found quite a large saving from a surprising source off 70w-------



---central heating water pump on step 3=140w step1=70w

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PostPosted: Sat Jul 05, 2014 1:13 pm 
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Small energy savings leads to bright glowy future.


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PostPosted: Thu Aug 06, 2015 5:56 pm 
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I replaced my old radiators with trench heaters that use natural convection and can notice changes in my heating bills.


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