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It has a flashlight, an LED flashlight.

And this fiber turns a wire attached to an LED.

The one thing we need to do is we have to replace these inefficient incandescent light bulbs, florescent lights, with this new technology of LED, LED light bulbs.

And you can see, this LED is going to glow.

I don't mention the high energy efficiency of these LED light bulbs.

Check this if you want to see the inactive LEDs.

Check this if you want to display seconds LEDs in order to see the seconds.

Check this if you want to see a grid around leds.

Right, the current wants to run through the play dough, not through that LED.

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Cars have LED based headlights, LED based back lights, and cars can communicate with each other and prevent accidents in the way that they exchange information.

Gumball machines?

We fit in an LED light bulb, worth three U.S. dollars, put in our signal processing technology.

Blue light is very efficient, so we have these tunable 24 bit LED lighting fixtures.

So, right next to my bed I keep a notebook, a journal, with a special pen that has a light on it, LED light, because I don't want to turn on the light and wake up my wife.

Capacity We have 10,000 times more spectrum, 10,000 times more LEDs installed already in the infrastructure there.

Now we have LED, but here you see the latest one, and you see how incredibly small it is.

These are LED lights that help the roughly billion people out there, for whom nightfall means darkness, to have a new means of operating.

And what we're seeing is that R D I Y has moved beyond just window farms and LEDs into solar panels and aquaponic systems.

Sheriff, would you extinguish the lights?

They created for me the biggest LED in the world especially for TEDx in Amsterdam.

The books also have high packed LEDs on the spines. So it's all display.

Slideshow

Presentation Slides

Active LEDs

You all know remote controls have an infrared LED basically you switch on the LED, and if it's off, you switch it off.

Presentation

Presentation Variables

Inactive LEDs

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In a zippy demo at TED U, AnnMarie Thomas shows how two different kinds of homemade play dough can be used to demonstrate electrical properties by lighting up LEDs, spinning motors, and turning little kids into circuit designers.

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The problem is though that I wanted to explain to you how this really works but I can have four of these on my finger, so you would not to be able to really see them.

Your red light and siren in good working order?

Hit this red light and this police car slides up alongside.

LED lights is really a revolution in lighting they're super efficient and you can design lights in a new way.

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Let me show you these slides here.

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He put up a slide a little bit like this.

All around us, warning lights are flashing yellow, if not red. But we know that new technology and innovation are driving changes in the way that energy is produced, how new markets for food and clean water are emerging, and how basic ecological services are now becoming scarce and valued.

This can be combined with LED lighting as well.