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09-20-08, 04:19 PM | #1 |
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groar's lighting thread
Since years, we are replacing bulbs by CFL. A few months ago we tried a few LED. I was then curious to know how much we were saving by year.
I developed a little spread sheet, accessible here : http://www.groar.org/EcoRenovator/lighting/ Warning, I developed it under OpenOffice and the xls format is from an export, so I don't know if it works. To use it :
Results :
Sorry, as I don't have cost of CFL of LED, I can't calculate time of return on investment and didn't developed this feature. You may conclude that lighting saving isn't worth the investment, but remember that if everybody implement that then this is a lot of saving and delayed new power plant constructions, giving more chance to renewable plants. In a few days I should add some pictures in this thread. Have fun, Denis.
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10-05-08, 04:30 PM | #2 |
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Led
We have a few LED in the house. They are 1.4w each. The facts are they don't light a lot (may be corresponding to a 6w bulb each) and they have a directional lightning, but they are interesting when you need few light.
We can imagine using LED over a desk per example. Today I don't think it's possible to use LED where 60w equiv. lightning is needed. As said in another thread, we are using LED in two places : bathroom and baby's room.
Denis.
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10-05-08, 04:44 PM | #3 |
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Cfl
We are using CFL nearly everywhere. Several kind of CFL exist :
Here are several examples :
Denis.
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10-05-08, 04:40 PM | #4 |
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Looks pretty good in the bathroom. What kind of lights did you replace?
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10-05-08, 04:48 PM | #5 | |
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Quote:
We never used them as 110w directly into the eyes are too much at any time. Denis.
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10-06-08, 06:13 AM | #6 |
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Where did you get your LED spotlights in the bath? How many lumens are they rated for?
I have about seven par20 lights (currently 50w halogen) in my Kitchen and would love to replace them with something efficient. However, they are on a dimmer, and I can't find any CFLs in par20 that are dimmable. Are most LEDs dimmable? I'm thinking they probably aren't.
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10-06-08, 03:23 PM | #7 | ||
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Quote:
About lumens, there was no more data on the package than in this PDF. My eyes say these LED are equivalent to a classic 6w bulb, but the light is directional so it's more intense in the pencil of rays. Quote:
After a quick search on Internet, and if I understand correctly, LED are dimmable but doesn't reply linearly to the dimmer. Denis.
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10-07-08, 10:03 AM | #8 |
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noticable difference between the natural and classic CFL's.
Not sure which one I'd prefer. suggestions anyone? |
10-07-08, 10:26 AM | #9 |
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It all depends on the color of the rooms IMO. If you want a room to appear warmer you go with the normal light. If you want a room to appear cooler go with the sunlight kind. Also, the sunlight kind are supposed to reduce the effects of seasonal depression. However, they usually cost more too.
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10-07-08, 11:15 AM | #10 |
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good insight..thanks Daox.
What kind of $$ difference are you talkin? |
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cfl, led, lighting |
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