Super Efficient Plasma Lightbulb Burns Brighter

[mnemeth1]

http://blog.wired.com/gadgets/2008/04/s ... cient.html

6000º Kelvin. That's the temperature at the surface of the Sun. It's also the temperature inside the new hyper efficient plasma lightbulb from Luxim, which puts out 140 lumens per watt. That's double the efficiency of an LED and almost ten times better than an incandescent bulb.

The little pod sits inside a ring of "dielectric material", which concentrates an electrical field into the bulb. The contents of the bulb vaporize and the plasma glows. A single of these tiny bulbs is brighter than a streetlight.

Back to that temperature. 6000 K is close to the color temperature of daylight (5500K), so the Luxim bulb doesn't suffer from a "cold" light like some energy saving solutions. Right now Luxim is pushing its tech at the entertainment industries: projectors and light displays. As costs fall, though, this could end up everywhere, except perhaps a mood-lit bachelor pad.

[mharratsc]

Yeah but what's the temperature on the outside of the bulb?? How much of that heat transfers to the electrical leads, wiring, and bulb socket??

[mnemeth1]

Looks like it burns relatively cool on the outside.

It plugs into a special socket like a street light.

You can see a video of it on youtube.

[saturnine]

Color temperature doesn't equal how hot it is. I have some CFL bulbs that are 5500K yet they are putting out less heat than the 60 watt bulbs they replaced. I didn't see it in the article, but I wonder what the life expectancy of these plasma bulbs are.

[MGmirkin]

Update:

(Luxim's tiny plasma lightbulb outshines LEDs)
http://www.physorg.com/news125238861.html

(The lightbulb of the future? - Luxim's plasma lightbulb)
http://news.zdnet.com/2422-13748_22-192 ... ag=nl.e550

Regards,
~Michael Gmirkin

[MGmirkin]

(Luxim Corporation)
http://www.lifi.com/

[ronjakkz]

http://blog.wired.com/gadgets/2008/04/s ... cient.html

6000º Kelvin. That's the temperature at the surface of the Sun. It's also the temperature inside the new hyper efficient plasma lightbulb from Luxim, which puts out 140 lumens per watt. That's double the efficiency of an LED and almost ten times better than an incandescent bulb.

The little pod sits inside a ring of "dielectric material", which concentrates an electrical field into the bulb. The contents of the bulb vaporize and the plasma glows. A single of these tiny bulbs is brighter than a streetlight.

Back to that temperature. 6000 K is close to the color temperature of daylight (5500K), so the Luxim bulb doesn't suffer from a "cold" light like some energy saving solutions. Right now Luxim is pushing its tech at the entertainment industries: projectors and light displays. As costs fall, though, this could end up everywhere, except perhaps a mood-lit bachelor pad.

woo.. i never thought this is equivalent of plasma lightbulb from Luxim, now i know



_________________
LED Flashlight