LED Bulbs Save Substantial Energy
nytimes.com
LED Bulbs Save Substantial Energy
1–10 of 49 posts
Re: LED Bulbs Save Substantial Energy
#2That was actually a much more detailed and thorough comparison than I had expected when I clicked the link.
Re: LED Bulbs Save Substantial Energy
#3Now they just need to come down in price and get the spectrum right. While the fluorescent lights are already competitively priced, LED ones are still rather pricey, at about €15-20. The spectrum emitted by the pseudo-white LEDs is also unpleasant (primarily yellow + blue), the RGB ones need to become cheap enough.
RGB lamps could also have some interesting extra features, like adjusting hue based on time of day, which might help insomniacs (such as myself).
Re: LED Bulbs Save Substantial Energy
#4We have a kitchen which contains about 7 small spotlights. I thought I'd try out some LED replacements, which each contain like 10 small white LEDs. They were more expensive, but I thought it'd be worth a try. A bit like these http://nextday.diy.com/app/jsp/product/productPage.jsp?produ...
The issue is, they look bright when you look at them, but they actually provide absolutely no actual light. Even when we had 7 of them, the room was almost pitch black. I actually think it's a bit of a con to even sell these things, knowing they are unusable for most applications.
>> "While it is indisputable that LEDs use a fraction of the electricity of a regular bulb to create the same amount of light,"
I'm not sure on how they measure 'same amount of light', because all of the energy saving lights I've ever seen are absolutely no where near as bright as standard lights. Which is a shame.
just my 2c
Re: LED Bulbs Save Substantial Energy
#5Now they just need to come down in price and get the spectrum right. While the fluorescent lights are already competitively priced, LED ones are still rather pricey, at about €15-20. The spectrum emitted by the pseudo-white LEDs is also unpleasant (primarily yellow + blue), the RGB ones need to become cheap enough. RGB lamps could also have some interesting extra features, like adjusting hue based on time of day, whi…
Or even RGB LED lighting that can plug into an Arduino, so you could make that yourself.
Or, I suppose, in the vein of a plant that twitters about its thirst, a bot that performs sentiment analysis on your tweets and adjusts the light accordingly.
Re: LED Bulbs Save Substantial Energy
#6We have a kitchen which contains about 7 small spotlights. I thought I'd try out some LED replacements, which each contain like 10 small white LEDs. They were more expensive, but I thought it'd be worth a try. A bit like these http://nextday.diy.com/app/jsp/product/productPage.jsp?produ... The issue is, they look bright when you look at them, but they actually provide absolutely no actual light. Even when we had 7 of…
Most of the older LED spotlights are highly directional. Like, very highly. I suspect your bulbs did an excellent job of lighting one little spot on the floor beneath (or wall opposite) the light, and almost nothing to illuminate the whole room.
Anyway, they've come a long way since then. Probably not long enough to buy them next time you change your bulbs, but they're a lot better than they used to be.
Re: LED Bulbs Save Substantial Energy
#7Definitely. It's very noticeable when you are energy-constrained. I recently bought LED based flashlight and it's awesome. It's tiny, very bright and batteries lasts forever.
Re: LED Bulbs Save Substantial Energy
#8this is certainly a good thing, no doubt about it, but what I'd like to know is how many people's mindset shifts from conservative to liberal knowing that they are "saving electricity with new bulbs therefore can run the lights all day". i'd have to say i'd be in that camp as well because I work from home and often like it to be well-lit but force myself to act more conservatively in favor of our electricity bill.
in my opinion, this was one of the problems with the American auto industry too. all of the efficiency realized through R&D effectively went into appeasing the "demand" for more HP instead of better MPG...
Re: LED Bulbs Save Substantial Energy
#9We have a kitchen which contains about 7 small spotlights. I thought I'd try out some LED replacements, which each contain like 10 small white LEDs. They were more expensive, but I thought it'd be worth a try. A bit like these http://nextday.diy.com/app/jsp/product/productPage.jsp?produ... The issue is, they look bright when you look at them, but they actually provide absolutely no actual light. Even when we had 7 of…
Most of the older LED spotlights are highly directional. Like, very highly. I suspect your bulbs did an excellent job of lighting one little spot on the floor beneath (or wall opposite) the light, and almost nothing to illuminate the whole room. Anyway, they've come a long way since then. Probably not long enough to buy them next time you change your bulbs, but they're a lot better than they used to be.
I bought these earlier this year :/ Maybe I'll give them another go in a few years.
Re: LED Bulbs Save Substantial Energy
#10We have a kitchen which contains about 7 small spotlights. I thought I'd try out some LED replacements, which each contain like 10 small white LEDs. They were more expensive, but I thought it'd be worth a try. A bit like these http://nextday.diy.com/app/jsp/product/productPage.jsp?produ... The issue is, they look bright when you look at them, but they actually provide absolutely no actual light. Even when we had 7 of…
I've recently become a fan of the Black Diamond Apollo LED lanterns for camping use. They're only 3W, and the total light emitted isn't as high as from some of the competitors, but what makes them great is that the mirrors and lenses are shaped perfectly so that it evenly illuminates a tabletop-sized work area, and throws no light upwards. The focusing is easily the most important aspect of the product.
However, it seems quite plausible that the different spectrum of LEDs could affect the perceived brightness, particularly if you're wanting the diffuse reflection from LED spotlights to act as ambient lighting.