PrestonSturges wrote:Hey who remembers when Tensor lamps were "cool" with the little incandescent bulbs?
Jay Monroe, 80, Engineer Who Invented Tensor Lamp, Dies
PrestonSturges wrote:Hey who remembers when Tensor lamps were "cool" with the little incandescent bulbs?
PrestonSturges wrote:I bought a $20 LED desk lamp at Costco. It's a lot like a halogen lamp, but I like it quite a bit.
LED bulbs hit 100 watts as federal ban loomsTwo leading makers of lighting products are showcasing LED bulbs that are bright enough to replace energy-guzzling 100-watt light bulbs set to disappear from stores in January. The new bulbs will also be expensive -- about $50 each -- so the development may not prevent consumers from hoarding traditional bulbs.
Osram Sylvania, a unit of Germany's Siemens AG, said it has overcome the heat problem and will be showing a pear-shaped 100-watt-equivalent LED bulb this week. It doesn't have a firm launch date, but it usually shows products about a year before they hit store shelves. Lighting Sciences Group Corp., a Satellite Beach, Fla.-based company that specializes in LED lighting, will be showing several 100-watt-equivalent prototypes, including some that solve the problem of cooling the LEDs by using microscopic devices that move air over the chips, like miniature fans. Before the 100-watters, there will be 75-watters on the shelves this year. Osram Sylvania will be selling them at Lowe's starting in July. Royal Philips Electronics NV, the world's biggest lighting maker, will have them in stores late this year for $40 to $45.
However, LED prices are coming down quickly. The DoE expects a 60-watt equivalent LED bulb to cost $10 by 2015, putting them within striking range of the price of a compact fluorescent bulb. But, he said, "it's not necessarily clear to people in the lighting industry that LED chips were ever meant to go into a bulb." What's really needed, he said, is a new approach to lighting -- new fixtures and lamps that spread out the LEDs, avoiding the heat problem.
US introduces $60 LED light bulb
Made by Dutch electronics giant Philips, the bulb swaps filaments for light-emitting diodes to provide illumination.
Using LEDs endows the light with a long life and a hefty price tag. The first versions are set to cost $60 (£37).
Philips has arranged discounts with shops that will sell the bulb meaning some could buy it for only $20 (£12).
Production ban
The bulb triumphed in the Bright Tomorrow competition run by the US Department of Energy that aimed to find an energy efficient alternative to the 60-watt incandescent light bulb.
The DoE challenged firms to develop a design that gave out a warm light similar to that from an incandescent bulbs but was much more energy efficient.
Philips was the only entrant for the competition and its design underwent 18 months of testing before being declared a winner.
A cheaper and less efficient version of the LED bulb is already sold by Philips in the US and Europe.
LED bulbs face competition from compact fluorescent lights which are almost as energy efficient and cost a lot less.
Sales of more energy efficient bulbs are being aided by official moves to end production of higher wattage incandescent bulbs.
Production of 100 watt bulbs has ceased in the US and Europe. Production of 60 watt bulbs has been stopped in Europe and is being phased out in the US. From 2014, incandescent bulbs of 40 watts or above will be banned in the US.
http://www.bbc.com/news/technology-17788178
Sixstrings wrote:I'm on the fluroescent bulbs now. I can't remember last time I checked if those come in a 100 watt option, but what I have is fine with me it's like what $5 or $7 and they last five years or so.
Now an LED bulb.. 20 year life for $60, I think you're better off with the 5 year life on a fluorescent.
eXpat wrote:Sixstrings wrote:I'm on the fluroescent bulbs now. I can't remember last time I checked if those come in a 100 watt option, but what I have is fine with me it's like what $5 or $7 and they last five years or so.
Now an LED bulb.. 20 year life for $60, I think you're better off with the 5 year life on a fluorescent.
Maybe I have been really unlucky, but I never, ever had a fluroescent bulb that had lasted what they advertise, with normal use. Ever.
On the other hand, I had incandescent lamps, that lasted way beyond expectations.
dinopello wrote:There doesn't seem to be any "ban" on anything. I just bought at Home Cheapo a 150W incadescent for a dimmer torchiere lamp that my mom has. Here it is.
PrestonSturges wrote:So why did the Bush adminsitration pass these regs?
Maybe I have been really unlucky, but I never, ever had a fluroescent bulb that had lasted what they advertise, with normal use. Ever.
TreeFarmer wrote:Maybe I have been really unlucky, but I never, ever had a fluroescent bulb that had lasted what they advertise, with normal use. Ever.
We must be buying our bulbs at the same place because my expereince is 100% your experience.
Treefarmer
TreeFarmer wrote:Maybe I have been really unlucky, but I never, ever had a fluroescent bulb that had lasted what they advertise, with normal use. Ever.
We must be buying our bulbs at the same place because my expereince is 100% your experience.
Treefarmer
Alfred Tennyson wrote:We are not now that strength which in old days
Moved earth and heaven, that which we are, we are;
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.
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