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What is the difference between incandescent and fluorescent light bulbs?
Incandescent lightbulbs have an electrical circuit that passes through a tungsten wire. As the electricity flows, the tungsten is heated up to a point where it emits light waves. Gases (xenon, I think) help sustain the wire until it breaks. This is when the light stops and needs to be replaced. (the tungsten also emits heat when lit) Incandescent lights have the full spectrum of colors. Fluorescent bulbs are filled with a gas and a bit of mercury. Electricity gives the ions in the gas energy, which is released in the form of light. This method sustains the bulb far longer than an incandescent lightbulb. Fluorescents release much less heat, making them more energy efficient. However, the spectrum of the fluorescent bulb is missing a few colors of the spectrum, which makes the spectrum look cool and incredibly weird.A fluorescent lamp or fluorescent tube is a gas-discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short-wave ultraviolet light that then causes a phosphor coating on the inside of the bulb to fluoresce (glow), producing visible light.
Where will a full range of colors be better seen in a room with fluorescent or outside under daylight?
Daylight will have a more complete spectrum. An interesting experiment is to hold a CD close to a fluorescent lamp. The CD will act as a primitive diffraction grating, and you'll see distinct blobs of colour - not a continuous rainbow spectrum. You're seeing the light emitted by the various phosphors in the fluorescent tube.
If light reflects off an object what determines the color?
When light hits an object, some of the light spectrum is absorbed and some is reflected. The colour you see is the reflected light. The rest is absorbed. For example a red T shirt will absorb all the colours in the light spectrum a nd reflect red. Black absorbes all light and reflects non hence darkness and white is the reflection of the full spectrum. Orange is a blended reflection of Yellow and red.
What is an example of a mechanical wave A glass of water A shovel full of dirt The light of a light bulb or The noise of a car horn?
The noise of a car horn.
Are all 5000 kelvin light bulbs full spectrum light bulbs?
The short answer is: NOFirstly it should be understood that "Full-Spectrum" is a purely marketing term. There is no independent standard for "Full-Spectrum" lighting. 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=303Also check out the non-profit Lighting Research Center at the following links:.lrc.rpi.edu/programs/NLPIP/lightingAnswers/fullSpectrum/comparisons.asp-and-.lrc.rpi.edu/programs/nlpip/lightingAnswers/fullSpectrum/abstract.asp
Will a condensed fluorescent bulb work as a grow light for garden?
Only if you buy a "full spectrum" of "grow light" type of compact bulb.
Will a gardenia bonsai survive in fluorescent lighting?
Yes, fluorescent lights can be placed close to the tree without too much heat, so they are good for indoor plants including bonsai. It will do best if you choose a full-spectrum "grow light" bulb rather than a typical residential or shop light bulb.
Can you use an incandescent light bulb in a full spectrum lamp?
no
What is the difference between incandescent and fluorescent light bulbs?
Incandescent lightbulbs have an electrical circuit that passes through a tungsten wire. As the electricity flows, the tungsten is heated up to a point where it emits light waves. Gases (xenon, I think) help sustain the wire until it breaks. This is when the light stops and needs to be replaced. (the tungsten also emits heat when lit) Incandescent lights have the full spectrum of colors. Fluorescent bulbs are filled with a gas and a bit of mercury. Electricity gives the ions in the gas energy, which is released in the form of light. This method sustains the bulb far longer than an incandescent lightbulb. Fluorescents release much less heat, making them more energy efficient. However, the spectrum of the fluorescent bulb is missing a few colors of the spectrum, which makes the spectrum look cool and incredibly weird.A fluorescent lamp or fluorescent tube is a gas-discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short-wave ultraviolet light that then causes a phosphor coating on the inside of the bulb to fluoresce (glow), producing visible light.
What is the main difference between an incandescent light bulb and compact fluorscent light bulb?
An incandescent bulb differs from a fluorescent based on how it produces light. "Incandescent" means producing light through heat, this is essentially how an incandescent bulb lights. As current travels to the tungsten filament, the filament heats and lights up as the tungsten filament begins to deteriorate and eventually fail. Fluorescent bulbs produce light when current excites gasses inside the glass envelope. As the gasses get excited they emit photons. Interestingly, the light produced by a fluorescent bulb does not fall along the visible spectrum until it passes through the white, phosphor coating on the inside of the bulb. And there you have it.
Where will a full range of colors be better seen in a room with fluorescent or outside under daylight?
Daylight will have a more complete spectrum. An interesting experiment is to hold a CD close to a fluorescent lamp. The CD will act as a primitive diffraction grating, and you'll see distinct blobs of colour - not a continuous rainbow spectrum. You're seeing the light emitted by the various phosphors in the fluorescent tube.
What is the best lighting for freshwater aquarium?
Any light that you enjoy that fits closely to the natural spectrum of daytime light is fine for fish.For plants you need to find a light that is specifically made to radiate full spectrum or targeted spectrum for the plants as well as for your viewing pleasure. There is no perfect light and I have had good results with all types. Each has a benefit and each has drawbacks.In Order my favorite Plant Lighting included with its drawback would be:Metal Halide (too hot, expensive bulb) best for color rendering and last longT5 VHO (Energy Use, Bulb Life)T5 HO (Bulb Life) good for energy efficient show tanksCompact Fluorescent CFL (lifespan)T12 (bulb size / quantity needed) good for cheaper tanksT5 (brightness) great choice for small to medium planted tanksLED (Cost, Spectrum) great for micro tanksSunlight (Portability) great for realism :)Spiral DIY Compact Fluorescent (scattering, light output, wasted light, looks)T8 (size and availability, household use mainly)Incandescent (poor everything)Finding a bulb to put in one of those types of lighting fixtures is sometimes difficult and may require you searching and testing. look for a full spectrum between 5300k and 10000k best is 6500k with a good CRI PAR rating. There is no best light as you can see.
How can you tell for sure if a filament type bulb contains xenon or halogen elements?
You could shine white light through it, divide the light that comes out the other side into the full spectrum of colors, see which colors were absorbed by the bulb and are therefore missing from the spectrum, and consult a table to find out what element corresponds to that pattern of color bands.
Is light made up of all the colours of the rainbow?
Most natural light is full spectrum, at least what we see in every day life. Isaac Newton proved the principle using a prism several hundred years ago. Artificial full spectrum light contains all colors. The lamps that produce this are usually specialized to the printing industry, and photography and film. However, there are full spectrum lamps available and some schools and office uses them to reduce the headaches many people suffer who work under fluorescent lamps.
What is a full spectrum led light?
a: LEDS emit different color of light or really different frequency that to us means colors. Some LED are manufacture to provide the full spectrum of frequency. so full spectrum
Why does the colors of an object look different under a fluorescent lamp from the way it looks under an incandescent lamp?
differences in the color of light will change the color's appearance as it is seen under fluorescent and incandescent. An incandescent lamp, like the sun, produces a spectrum of light in every color in a wide band, broad enough to cover the entire visible spectrum -- and extending past it to many colors that humans can't see. A fluorescent lamp produces a spectrum of light in a few narrower bands of color. That is why a fluorescent lamp is more energy efficient than a incandescent -- the fluorescent lamp doesn't waste energy producing photons that humans can't see. Some materials (such as white paper) reflect all visible colors equally. They look white in almost any kind of light. Other materials absorb some colors more strongly than other colors. They look colored in "white" incandescent light. If we have a material that reflects most colors equally, except for a narrow band of colors, and that band is in the "dark" part of of the fluorescent spectrum -- it will look the same color as white paper. If we have another material that reflects most colors equally, except for a narrow band of colors that is in one of the bands of colors produced by a flourescent lamp -- that material will look even more deeply colored in fluorescent light than in incandescent light.
Which bulbs are best for daylight lamps?
When you're looking for a bulb for a daylight lamp, the best ones are going to be full spectrum light bulbs. They are pure white light and is a natural appearing daylight color. If you suffer from S.A.D., or winter blues, then this is the kind of light bulb that you would be looking for.
