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Light Bulbs and Artificial Lighting

Artificial lighting has become standard in the homes and companies of most countries. It is used for concert effects, growing food, and reading a book in bed at night.

2,482 Questions

How do you change a light bulb in a ceiling fan with an enclosed light?

The cover should is either a pop off, (pry it open by pulling or prying on any edge) or there are screws

What can a L.E.D light be used for?

LEDs have many practical at home uses as well as military uses. The leds at home can range from car headlights to emergency self defense lights or simply LED bulbs that can replace your old ones. Since LEDs are more efficient while bring more light they can cut down on power bills. Then you have people who need them for high stress situations such as police officers and military personnel. There are lights that can reach up to 1/4 of a mile on single batteries.

The gas that is used for incandescent light bulbs and radio tubes?

Argon and nitrogen are the two main gases used in bulbs today.

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Is a light bulb a mechanical energy?

No. It converts electrical energy into light and thermal energy only.

Why is there a light bulb in your Yorkville Speaker Cabinet?

Light bulbs are commonly used in speaker cabinets as protection devices. They absorb some of the power at certain frequencies that could otherwise damage the driver. They can be thought of as a simple but efficient fuse.

If you have 3 light bulbs explain how you can determine they are connected in parallel circuits by unscrewing one bulb?

Unscrewing any light bulb in series will result in the others turning off. If they are in parallel, unscrewing one will have no effect.

For example, say we have lights bulbs L1, L2, and L3, where L1 and L2 are in parallel and L3 is in series with L1 and L2.

If L1 is unscrewed: L2 and L3 will stay lit.

If L2 is unscrewed: L1 and L3 will stay lit.

If L3 is unscrewed: L1 and L2 will turn off.

Do higher wattage light bulbs draw more amps?

Yes, and it's proportional.

V * I = P

Where V is the voltage in Volts, I is the current in Amperes, and P is the power in Watts.

So we get:

I = P / V

For example, with a 240 Volt supply, a 12 Watt lamp would draw:

12/240 0.05 Amperes, or 50 milliamps

Why do LED lamps is as hot as incandescent?

Incandescent bulbs generate light through resistive heating of a tungsten filament, to such a point that the filament glows and provides light. This resistive heating produces large amounts of waste heat and a relatively small amount of power translated into light. In an LED, there is relatively little waste heat, as photons (packets of light) are directly generated. Although it is much more efficient of a light emitter than an incandescent light, there is some small amount of heat generated.

Are Incandescent bulbs going to be outlawed?

There is nothing that states incandescent light bulbs will one day be illegal or outlawed. Using them is an individuals option and right.

What are the manufacturing costs of fluorescent and incandescent light bulbs?

The costs of manufacturing costs of fluorescent and incandescent light bulbs are about the same aside from the slight different materials.

What is the insulator in a light bulb?

Glass is the insulator in a light bulb. The base has a heavy piece of glass to separate the ring from the center, and there is a glass support inside the bulb to hold up the filament and separate the wires going to the filament.