New light

[unixronin]

So you thought LED lights were the most energy-efficient lighting coming to market, huh?  Guess again.  An outfit called Luxim has a new gas-plasma light technology they call LiFi.  The new LiFi bulb is the size of a gel capsule, and delivers 140 lumens of instant-on, very high visual quality light per watt with very little waste heat.  (Compare that to around 10-12 lumens per watt for an incandescent bulb, 13-15 for halogen, 35-40 for compact fluorescent bulbs, or about 80-90 lumens per watt for the brightest production LEDs.  Wikipedia has a handy reference table here.)

Comments

[unixronin.livejournal.com]

Yup, exactly. The 5W Luxeon Star units are getting pretty close to the sustainable limit of heat dissipation. I have an Inova X0 flashlight that gets a claimed 130 lumens out of a 4.8W LED, and it's a bright little sucker — I love it — but after a few minutes of operation, the whole damn flashlight is getting warm. I've seen LED bulbs with arrays of as many as 120 LEDs in them that are supposed to be a replacement for a 60W bulb, but, come on, 120 emitters? And the damned things cost $130 per bulb. No-one's going to buy those in quantity.

[perspicuity.livejournal.com]

i wonder if they shouldn't try lasers spliced up and collimated to produce some nice light. someday.

bright-guy.com ha some nifty flashights.

i've personally held a 6die, 1000 lumen LED job. sweet mother. brightest 6v LED i know of is around 220 lumens. not too shabby.

but what really makes my heart flutter, is the HID flashlight :> oh yah.

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