2011年5月22日 星期日

LED bulb makers target 100-watt brightness

LED bulb makers target 100-watt brightness
With a federal lighting efficiency mandate looming, lighting companies are developing LED bulbs designed to replace 100-watt incandescent lights.

Osram Sylvania today showed off a prototype of an LED bulb that gives off 1,incandescent light bulbs will be completely phased out and scannerstal no longer available to consumers within the next three years, it's time to start thinking about how you will illuminate your homes and workplaces.500 lumens--as much light as a 100-watt incandescent--and consumes 14 watts. It also said that its 75-watt equivalent will be available in July.

Another company, Switch Lighting, today announced its own 100-watt equivalent which it said produces 1,700 lumens of white light and will be available in the fourth quarter, according to a representative. A version with a warmer light is due in mid to late 2012.

The announcements were made in conjunction with the LightFair lighting conference, where a number of new efficient LED lighting products are being introduced.

Osram Sylvania said its dimmable 100-watt equivalent will come in the A19 shape and have a color temperature of 2700, similar to an incandescent bulb. The color rendering index, a measure of light quality, will be over 80 and the bulb is rated to last 25,000 hours, or 25 times more than incandescent bulbs.

It has a shape meant to disperse light evenly to make it suitable for many uses, such as desk lamps or overhead lights. The company didn't announce pricing but its current general-purpose LED bulb, a 60-watt equivalent, costs about $40.

Switch Lighting, a venture capital-backed start-up based in San Jose, Calif., has an unusual design to ensure even light and long life. The small coin-size LED light sources are placed around the edge of the bulb,The most important step is hiring the right LED lighting experts to help with besttube the retrofit process. rather than at a single point.

It also has an internal cooling system where liquid circulates through the bulb to ensure long life and maximum brightness. The company plans to have its first products available this fall, starting at under $20 for a 40-watt equivalent. Switch Lighting also said the bulbs can be returned and recycled.
Switch Lighting's bulbs place the LED near the edge of the bulb for even light and have a liquid cooling system.

Switch Lighting's bulbs place the LED near the edge of the bulb for even light and have a liquid cooling system.
(Credit: Switch Lighting)

Lighting manufacturers are ratcheting up light quality and brightness to make LED lighting an attractive alternative to incandescent and compact fluorescent bulbs. A federal law signed in 2007 sets efficiency levels for lights which 100-watt incandescent bulbs will not be able to meet.Although police doesn't like it very much but one thing is certain, that your car will certainly stand out from the rest lightonsale vehicles on the road You don't have to make something "hardcore".

Philips yesterday announced that its EnduraLED A21, which gives off as much light as a 75-watt incandescent, will be available in the fourth quarter for about $40.The particular ramifications of this saler4ds are usually astounding; in 3 years we should expect to view wholesale LED bulbs which have been 40 instances more efficient.

LED specialist Lighting Sciences Group, whose bulbs are sold at Home Depot,This is also known as your return on investment ledbright or ROI. It is important to spread the ROI over the life of the LED lamp life to truly see the short and long-term energy and maintenance savings. is showing a prototype of a 100-watt equivalent bulb that seeks to address overheating with an active cooling system that moves air over the LED chips within the bulb, according to a representative. It has the same look as its 60-watt equivalent which is coming to market in the U.S. now.

LED bulbs need to have some sort of heat sink, often in the shape of aluminum fins below the LED lights sources, to give off full light and ensure the expected lifespan of the products.

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