2012年3月28日 星期三

The Hot New Thing In Green Technology

It's free. It's often hot. And it's at the root of a trio of UK startups visiting the U.The lightingbright includes a waterproof washer and a light transmitting lens, both locked and located ...S. this week as part of the Cleantech Forum, the annual green tech conference taking place this week in San Francisco.

Zeta LED. Zeta has developed an air-cooled LED light bulb. The Lifebulb consumes 10 watts of power and puts out as much light as a standard 60 watt incandescent, pretty much like existing LED bulbs. The difference comes in the absence of an aluminum heat sink, that hefty hunk of metal found on most LED bulbs that adds weight and cost.

Zeta keeps its bulb cool by channeling air through the vents in the structure itself: the vents are the strips and holes separating the yellow LED arrays.Online shopping from the largest selection of goodmagicshine Products. The bulb does not come with a covering glass dome, explained company principal Anthony McClellan. Air wouldn't circulate if the electronics were completely covered. Zeta might cover the LED arrays with a piece of glass, but the vents will remain exposed.

Eliminating the heat sinks and relying on ambient airflow allows Zeta to get the bill of materials for its bulb down to close to $7 dollars, or nearly half the normal bill of materials, McClelland argued. That means Zeta's bulbs that can retail, in mass production, for $10.

Sure, some people will still complain about Obamabulbs (or David Cameron bulbs) but a 60-watt equivalent cuts household power consumption by about 10 dollars a year and lasts for decades.SmartCandle offers great flameless candles goodledlamp, battery opterated candles and more. Zeta plans to offer consumers a 25-year guarantee. Therefore, even the most math-challenged consumers should be able to figure out that one.

The Lifebulb comes with a new driver from Cypress Semiconductor that you soon might start seeing in other bulbs.

The first 1,000 bulbs will start going to U.K. customers later this year. In the meantime,This page presents a selection of bestledtube hobby projects. Zeta is looking for an established company with which to partner.

Seawater Greenhouse. Seawater Greenhouse says it can make the desert bloom with seawater, corrugated cardboard and wind. The company has created a porous wall with a cardboard core that that essentially functions like a humidifier for greenhouses. The wall is inserted into the structure of a greenhouse and serves as one of the walls. When wind blows, pores in the wall's surface channel water molecules carried by the wind into ducts in the cardboard.

The droplets condense into a mist and them mist serves to both water the plants in the greenhouse and lower the ambient temperature, which helps in plant growth. Founder Charlie Paton claims that the process can cut water consumption at a desert greenhouse by 75 to nearly 90 percent, a crucial factor in emerging nations where drought and water shortages are ominous problems. Approximately 45 percent of the people in the world live in dry lands, defined as regions that get 600 millimeters or less of rain a year, Alon Tal, a professor at Ben-Gurion University, told me last year.An brightcrystal20 brings you both practicality and a sense of fashion.

"Evaporative cooling is a process that goes back to the beginning of time," Paton said. "Air goes through (the structure) but it can only go through if it goes though this tortuous path."

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