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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
Is it dangerous to break fluorescent light bulbs on your back if you drain the mercury?
Yes, and not just because of the glass it is made of. The bulbs have mercury inside of them which can make you ill.
Can AutoZone replace headlight and brake light bulbs on a jaguar or should I go to the dealer?
Have you considered doing it yourself? It's generally pretty easy to change bulbs, and it's also usually pretty easy to find instructions on how to do it on the Internet (YouTube, for example).
The dealer will ALWAYS be expensive, unless you are having work done that's covered by the warranty. i found someone online that said that the dealer charged him $790.00 for changing headlight and taillight bulbs on a Jaguar.
Why did thomas edison invent the light?
Thomas Edison invented the light bulb to create a practical and affordable source of artificial light that could replace gas lamps and candles. His invention revolutionized lighting worldwide and improved safety, productivity, and quality of life for people.
Turn on one light bulb, leave it there for a long time. Then turn on another. Leave the last one off. Then go up. The first one you turned on will feel hot. The second one will feel warm. The last will be cold.
What does the PL in PL lamp stand for?
PL STANDS FOR PHILLUPS LIGHTING, THE COMPANY THAT FIRST DESIGNED AND MANUFACTURED THIS TYPE OF LAMP
Its not really necessary to shout while answering a question.
How many light bulbs can you splice from a ceiling jack to make a chandelier?
It is difficult to know, however you would certainly be safe to add the wattages of smaller bulbs to equal the bulb that was originally there. There are now led bulbs that consume less than 1 watt, 3 and 7 watt chandelier bulbs are quite common.
Are all 5000 kelvin light bulbs full spectrum light bulbs?
That said "Full Spectrum" is generally interpreted as: Having the same balance of wavelengths of visible light as natural daylight for the stated colour temperature. Just because a light bulb is rated at 5000 kelvin, it does NOT mean it produces the necessary uniform distribution of wavelengths (Spectral Power Distribution) to meet this specification. In fact the vast majority of light bulbs do not.
If the end users application is reliant on accurate rendering of coloured objects, there is an objective independent standard known as Colour Rendering Index or CRI. CRI is a rating from 0 to 100 and the closer to 100 a light is rated the more accurately colours are represented.
You can read about CRI at the International Commission on Illumination (CIE):
.cie.co.at/index.php/index.php?i_ca_id=303
Also check out the non-profit Lighting Research Center at the following links:
.lrc.rpi.edu/programs/NLPIP/lightingAnswers/fullSpectrum/comparisons.asp
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.lrc.rpi.edu/programs/nlpip/lightingAnswers/fullSpectrum/abstract.asp
How do you replace the rear light bulbs on a 97 camaro?
3rd brake light. Remove torx head screws and detach light housing. twist bulb holder counterclockwise to remove the pull bulb out of holder. Installation is reverse. Tail/Backup lights. Open trunk compartment. and remove interior trim panels. remove the 5 plastic nuts and pull light housing away from the car. Depress the clip and turn bulb counterclockwise and remove from housing. Install is reverse.
Which save more energy incandescent light bulbs or fluorescent?
Fluorescent light bulbs use less electricity for the amount of light produced.
How many light bulbs are there in Europe?
Can anyone possibly know? I should think at a rough guess about 10 per person
Did albert einstein invent the lightbulb?
No, Albert Einstein did not invent the lightbulb. The lightbulb was actually invented by Thomas Edison in 1879. Albert Einstein was a physicist known for his theory of relativity and contributions to the field of theoretical physics.
How do you change tail light bulbs on 1994 Geo?
remove the felt lining in the trunk. this will allow you access to the bulbs.
How do you replace a light bulb on a headlight?
Most of the newer bulbs can be removed by turning them counterclockwise after first removing the electrical connection. Purchase the replacement bulb first and have a look at the way it connects to the wiring and how it attaches to the headlight assembly. After sitting there for a few years the rubber often gets a little hard and is usually stuck to the headlight assembly so it might take a little effort. Hopefully removing it doesn't damage the assembly.
Is a light bulb an ohmic conductor?
For a material to be 'ohmic' or 'linear', it must obey Ohm's Law. For Ohm's Law to apply, the ratio of voltage to resistance must be constant for variations in voltage.
An incandescent lamp's filament is manufactured from tungsten, which is 'non-ohmic' or 'non-linear' because the ratio of voltage to current changes for variations in voltage. In fact, MOST conductors and electrical devices (such as diodes) are non-ohmic.
If you were to conduct an experiment that allowed you to record the variation if current flowing through a tungsten filament for variations in voltage, the result would be a curved graph line -in other words, a 'non-linear' (therefore, 'non-ohmic'), graph line.
So, to directly answer your question, NO, a tungsten filament is not an ohmic material.
Where did thomas edison invented light bulbs?
Edison did not invent the first electric light bulb, but instead invented the first commercially practical incandescent light.
Why did John Henry Holmes invent the light switch?
John Henry Holmes did not invent the light switch! Light switches were in use well before his invention. What he invented was a light switch that did not develop a sustained arc on opening or closing, this arc would damage the switch contacts causing early failure. He used a design called "quick-break" that opened and closed the contacts much faster then earlier light switches.
Are 3157 and 3157NA compatible bulbs?
For all practical purposes, they are interchangeable. To my eye the 3357 seeems to be brighter on the heavier filament. (brake/turn)
How do you make a light bulb work without electricity?
No power is used. The lamp in the light fixture is the load of the circuit. The load resistance is what makes the current flow. When the current flows through the filament's resistance, heat and light are generated. With no lamp in the fixture, the circuit's voltage potential is still at the socket contact points and if touched could cause you a shock. This is a good reason to shut the fixture off at the switch when removing the burnt out bulb and replacing it with a new one.
Why are energy saving light bulbs better than normal light bulbs?
LED lights are better than bulbs because they are more energy efficient, and environment friendly. You can definitely get a lot of savings with LED light bulbs.
