Posted on 05/23/2007 10:58:33 AM PDT by Ben Mugged
Eco-friendly lighting company EcoLEDs.com has launched the brightest LED light bulb ever made available to consumers in the United States. Using just 10 watts and a single LED component made in the USA, the LED light uses just 1/10th the electricity of an incandescent light bulb and reduces CO2 emissions by 9,070 pounds over its life.
The EcoLEDs 10-watt LED light is available now. Incandescent light bulbs are now being globally recognized as extremely inefficient and outdated. Australia has already banned the energy-hungry light bulbs, and California is considering a state-wide ban. In time, all modern nations will ban incandescent lights due to their extreme inefficiency: they waste 95% of the electricity they consume as excess heat.
The mainstream push is towards compact fluorescent lights (CFLs), but consumers are not being told that CFLs contain toxic mercury. There's enough mercury in a single CFL to contaminate 7,000 gallons of fresh water, and if Americans continue to purchase CFLs -- then throw them away in local landfills -- the United States will soon be facing an unprecedented burden of toxic mercury in rivers, streams, croplands and oceans.
(Excerpt) Read more at energy-daily.com ...
no, there are bulbs that are ~ $6, but they don’t really do mutch for lighting the whole room, geeks.com has/had some...
When measuring parts per...remember Avagadro. He has his own number. ;)
My little single-AA flashlight will run about 3 days continually on. ...and LED's aren't likely to break if dropped - the weakest point is usually the solder point or the traces on the ckt board, which are both a lot sturdier than an incandescent's filament.
No. They run on DC only. Incoming AC voltage must be converted to low voltage DC before the LED illuminates. No flicker there.
Unless they have a good rectifier, with capacitive storage, it’ll be a pulsing DC. Maybe these have it. I don’t know. ...or maybe 120 pulses per second is too fast to bothr the eyes.
I recall that if brightness is important, assume half the claimed lifespan, because they do degrade in brightness with time, and the latter half of life may be disappointing. Same is true for LED flashlights rated for “battery life.”
But I know what you're talking about. IIRC, it's the lack of "red" spectrum that causes the eye strain. My reading CFL is pretty warm.
My LED flashlights aren't that great for detail work, either.
“My little single-AA flashlight will run about 3 days continually on. “
My Lightwave 4000 uses 3 D batteries, but it will produce light for 30 days of continous burning.
http://www.flashlightreviews.com/reviews/lightwave_4000.htm
Figure 50-100,000 hours of useful life.
“My LED flashlights aren’t that great for detail work, either.”
My newest flashlight using the Cree LED put out a better quality , more appealing light.
My newest key chain flashlight is the single AAA LOD-CE by Fenix, it uses the Cree.
http://fenix-store.com/product_info.php?cPath=22_55&products_id=191
Yup. They are great when you reliably want to have *some* source of light for an extended period of time. The quality of the light is problematic for a lot of applications. I like my little AA flashlight because I can wear it around my kneck pretty comfortably while hiking or walking at night. It'll get me around a pitch dark building or camp site, or let me hunt for something I forgot in the car, or read a few pages from a manual. It's not something I'd light a room with, even if bright enough.
Sounds like a great car/hurricane flashlight.
I do wonder what they pay to replace bulbs!
Target also has a decent selection of LED lights at good prices, I got my headlamp there. For those repairs in the dark, the only way is with a headlamp. Another handy thing to have is a LED table lantern, target has a nice one, made by River Rock.
LED flashlights are worth the money in an emergency. Never go to an emergency again without one, if you can avoid it :-). The media is hoping for a busy hurricane season, the sun says it's not so sure about that.
What about the Mole?!? I forgot to factor in the Mole!!!
(Thanks for the High School Chemestry Exam nightmare flashbacks!)
LED lights are not ready for prime time for use in general home lighting. They’re super expensive. The light they produce tends to be really weak, and not particularly pleasing to look at. The companies that push them really seem to be engaging in some over the top false advertising. Someday LED technology will mature and we’ll all want to use them in our homes to replace incandescents and most fluorescents, but that time hasn’t come yet.
Here are the specs on the bulb:
http://www.betterlifegoods.com/ProductDetails.asp?ProductCode=LED-CAT21417
All they say is that it uses an American made component. The company that makes these is a Chinese company though, so my suspicion is that only a tiny percentage of this $99 bulb is actually made here.
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