They would each room typically had a light bulb socket at the top.

What about lightbulbs?

In your house, wires run in the wall, from the light switch to a junction box in the ceiling and from the junction box to the light bulb.

So, you can put circuit components on the staples, like a light bulb and a light switch.

A light bulb gives light.

The lightbulb blew out.

One bulb!

HogEye... turn that light back where it belongs.

Anything wrong with those light bulbs?

Where do you keep the lightbulbs?

At this time of night, burning up money. Ablaze with electricity , one bulb!

So, we had to design both the light and the light bulb.

You have lights in an aircraft.

So, the light bulb actually does that.

I can start plugging in lots of lights.

So it's everywhere in a day there is light.

Maybe it's the bulb.

lt's the light. The sign.

And with 200 square meters of solar power on our plane, we can produce the same energy than 200 little lightbulbs.

As you would expect, it's a light, a desk lamp.

Look at the ceiling, you see all these light bulbs.

Pretend you're unscrewing a lightbulb, like this.

And your next question is, can you light a little torch bulb with a battery, a bulb and one piece of wire?

These have already replaced 80 per cent of home fixtures in Japan and captured a significant share of the market in Europe and North America.

You will agree with me that we have lights in the hospital.

He went off like a light bulb.

But Mr. Bendolin can't manufacture electric light globes without it.

Again? These bulbs don't last very long.

Those bulbs needed changing, now it's easier to see

What happened to C.W.?

Now, here's how you do the battery and the bulb.

WK Four bulbs and two radios.

And I say, What is the light bulb good for?

Seems like I'm the third wheel here. I should go.

Seems like I'm just playing gooseberry here. I should go.

We're in the gambling business. What game uses light globes?

It's like flying inside a light bulb.

All right, bring your flashlight.

This is powered by wind. All of the lights are daylight bulbs.

Lighting New compact fluorescent lamps require less than a quarter of the electricity consumed by conventional light bulbs.

Did you ever see a light bulb burn out, how bright the filament is just before it lets go?

We change light bulbs without even thinking about it.

And when you turn the switch on, the light goes on.

And when you turn the switch off, the light goes off.

Go to the main floor, you see these light bulbs.