To get the same economics of the computer semiconductor industry, the LED lighting world needs to start manufacturing on the same equipment, says Bridgelux CEO Bill Watkins.
The LED light source maker said today that it demonstrated the production of LED light chips on silicon, a transition that will cut production costs by 75 percent and ultimately result in cheaper, energy-efficient light fixtures. Bridgelux intends to start making LEDs, which will be fitted into bulbs made by other companies, with the process in two or three years.
Light fixtures with LEDs use semiconductors made by growing Gallium nitride (GaN) on … Read more
You can include halogens to the list of lights that can replace traditional incandescent bulbs.
General Electric on Monday announced a line of halogen lights, which are available now, in the shape of the familiar incandescent which up to 22 percent more energy efficient.
A 2007 law created mandated efficiency levels for home lighting, which is expected to lead to fewer incandescent bulbs, starting with the 100-watt incandescent next year. Governments in other countries have set similar lighting efficiency requirements, which has led to more options for efficient lighting.
Because it's energy-efficient, LED lighting is spreading into new areas, but an academic study cautions that some types of LED lights use hazardous metals.
The University of California at Irvine last week published results of a study into the materials used for LEDs in Christmas tree lights and car brake lights and headlights. After crushing these types of lights, researchers measured the contents and found they contained varying amounts of toxic materials, including lead and arsenic.
"What our study showed clearly was that some LED lights qualify as hazardous waste, depending on color and light intensity, according to … Read more
With a multiday, multiregion storm impacting 100 million people over the next couple of days, solar roads that melt snow and ice seem less like a far-fetched pipe dream and more like an obvious investment. Engineers on opposite sides of the country are working to make that happen.
Solar Roadways in Boise, Idaho, received a contract from the Federal Highway Administration to build a solar road panel prototype, which was completed early last year. The 12x12-square-foot road designed by engineer and CEO Scott Brusaw is made out of panels encased in strong and durable glass with the traction of asphalt and that won't cause glare.
Each encased panel generates 7.6 kilowatt hours of electricity per day, and can be connected to smart grids to power homes and business. Wireless LED lights embedded in the glass create road signs and weight-sensitive crosswalks. They also contain heating elements that can melt snow and ice.
The technology to make snow plowing obsolete is similar to what's already used in automobile windshields. Heating elements in the glass melt existing snow or ice and prevent accumulation from developing. By preventing snow-related auto accidents and improving road access for emergency responders, the technology would save a lot of lives.
It could also save cities a lot of money. … Read more
LED maker Cree is gunning for the demise of the 60-watt incandescent bulb with a demonstration LED bulb that's energy efficient and disperses light in all directions.
The company today introduced a dimmable LED bulb, which it expects to get EnergyStar certification in the fall. Today's date coincides with the day 131 years ago when Thomas Edison received a key patent for incandescent bulbs.
Cree makes components that go into an LED light fixture, notably the LEDs' light sources themselves, and some light modules themselves. It has not yet decided how it will bring this demonstration 60-watt incandescent … Read more
Intematix today announced an component designed to improve LED lighting efficiency and give light fixture manufacturers more flexibility in adjusting light qualities.
The Fremont, Calif.-based company announced its ChromaLit product line, which offers a separate phosphor component that converts the blue light of LED light sources into pleasing white light.
Phosphors, which are compounds with inherent luminescence, are used for all LED light fixtures and bulbs. They are generally in a powder form that is directly coated onto LED light sources, which are semiconductors that emit light when electricity is passed through them.
Lighting Sciences Group today introduced an LED bulb designed as a replacement for a 60-watt incandescent that will be available next month for under $30.
The company announced the bulb at a ceremony at its Satellite Beach, Fla., headquarters, where it manufactured its 1 millionth LED light with the familiar "A" shape of an incandescent bulb.
A 40-watt equivalent LED bulb has been available through Home Depot since earlier this year, priced just under $18. The 60-watt replacement category is more significant because it's one of the most popular for lightbulbs, with hundreds of millions sold every … Read more
General Electric has released an Energy Star-compliant LED light designed as a long-lasting and efficient replacement for a 40-watt incandescent bulb.
The General Electric 9 Watt Energy Smart became available online for $50 earlier this week and will be available through GE's existing retail channel in January, according to the company.
The A19-shape bulb uses 9 watts and is rated to last 25,000 hours, or 22 years at three hours of daily use. It gives off 471 lumens, has a white light at 3,000 Kelvin, and does not contain mercury or lead.
At this point, LED bulbs are the hybrid cars of lighting. They're cheaper to operate but cost more upfront than their less-efficient cousins.
There have been LED spotlights and smaller lights for years, but now people can buy LED bulbs that give out as much light as a 60-watt incandescent and are designed for use just about anywhere. And rather than purchase them online or in a specialty store, they will be available at Home Depot, Lowes, and no doubt other familiar retail outlets next year.
Weighing cost and light quality, LEDs are worth considering right now for downlights … Read more