Forum: Lighting
11-07-08, 10:00 PM
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Replies: 18
Views: 16,673
LED and lumens
I spent a couple of minutes this afternoon in my bulb store. On LED only a subset of one brand indicate the lumens of their LEDs. They were all 1W and composed of 20 LEDs. Here they are :
yellow...
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Forum: Lighting
10-27-08, 04:12 PM
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Replies: 18
Views: 16,673
Yes, we bought the 6500°K bulbs ie "natural"...
Yes, we bought the 6500°K bulbs ie "natural" lights, while 2700°K are more "artificial" lights.
I didn't noticed the real price differences as we wanted to buy "natural" lights, but from what I...
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Forum: Lighting
10-26-08, 05:13 AM
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Replies: 18
Views: 16,673
CFL and lumens
I bought a few CFL yesterday, for our house and my parents in law's house.
For the living room we bought a 20w (100w equiv) 6500°K CFL. It's rated at 1090 lm (lumen) while the 2700°K one is rated...
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Forum: Lighting
10-06-08, 03:23 PM
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Replies: 18
Views: 16,673
Bought in local store. The LED are xanlite...
Bought in local store. The LED are xanlite (http://www.xanlite.com/). See ref. ALE21 in this French PDF (http://www.xanlite.fr/acceuil/PDF/Gamme_LED_A4.pdf).
About lumens, there was no more data...
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Forum: Lighting
10-05-08, 04:48 PM
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Replies: 18
Views: 16,673
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Forum: Lighting
10-05-08, 04:44 PM
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Replies: 18
Views: 16,673
Cfl
We are using CFL nearly everywhere. Several kind of CFL exist :
The classic CFL emit a "standard" artificial light. May be noted 2700°K on package.
The "daylight" CFL emit a light closer to...
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Forum: Lighting
10-05-08, 04:30 PM
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Replies: 18
Views: 16,673
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...
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Forum: Lighting
09-20-08, 04:19 PM
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Replies: 18
Views: 16,673
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 :
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