LED Fluorescent Powder in High Brightness with CE Approved

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Shanghai
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65 kg
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100000 kg/month

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Description of LED Fluorescent:

Many phosphors(Florescent Powder) tend to lose efficiency gradually by several mechanisms. The activators can undergo change of valence (usually oxidation), thecrystal lattice degrades, atoms – often the activators – diffuse through the material, the surface undergoes chemical reactions with the environment with consequent loss of efficiency or buildup of a layer absorbing either the exciting or the radiated energy, etc.


Festures of LED Fluorescent:

Phosphor layers provide most of the light produced by fluorescent lamps, and are also used to improve the balance of light produced by metal halide lamps. Various neon signs use phosphor layers to produce different colors of light. Electroluminescent displays found, for example, in aircraft instrument panels, use a phosphor layer to produce glare-free illumination or as numeric and graphic display devices. White LED lamps consist of a blue or ultra-violet emitter with a phosphor coating that emits at longer wavelengths, giving a full spectrum of visible light.


Specifications of LED Fluorescent:

Appearance: Yellow crystalline powder

Chemical composition: Rare earth aluminate

Physical stability: waterproof and heatproof. No any changes under -50°C to 300°C in the air.

Chemical stability: under 200°C, brightness >90%; within 1000 hours after encapsulation, brightness decay

Safety: Conform to the RoHS {EU (Restriction of Hazardous Substances)} and all security standards. Non-poisonous, non- radioactivity and do no harm to human and environment.


Images of LED Fluorescent:

LED Fluorescent Powder in High Brightness with CE Approved

 

FAQ:

1.When can i get the price quotation?

We can send you the quotation within 24hours after your inquiry, including the shipping cost if you need.

2.What about payment term?

30% T/T deposit, balance against B/L copy.

Full T/T payment if quantity less than MOQ.

3. What’s your after-sales service?

One-year warranty, and 1% common accessories.

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Q:what is pigment ink???????
Some printers use only pigmented ink. Others use dye based and then some use a combination of both. Dye based ink is basically water based with a dye added to it. Pigmented ink has a solvent base with dye added. Pigment ink and dye based ink have both advantages and disadvantages. Dye based ink have better colors but pigment are more water and fade resistant. Dye based inks are therefore better for photos. I have a printer that has 4 dye based inks and a black pigment ink. Mine uses the dye based black and colours for pictures and the pigmented black is used for text. So the answer is yes. Pigmented ink is used in some regular printers.
Q:Why do plants contain so many pigments?
Typically most plants only contain chlorophyll which is green. Which plants are you referring to?
Q:Physics: Compare and contrast pigment color with the color seen from a light.?
you notice pigments the colour you notice them, using fact they replicate a spectra of sunshine, with particular frequencies, and take up all others seen to the human eye. in case you combine distinctive monochromatic mild with distinctive colours (as seen on the television: purple, green and blue it quite is referred to as additive mixing, or magenta, yellow and cyanide that's the different technique) your retina will upload the colors up, and experience it as a distinctive shade. (by skill of including each and all of the three colours on an identical intensity, you are able to create white mild) while mixing pigments (they are chemical compounds) you get a clean cloth, which will replicate an different spectra of sunshine, which you will see as a shade
Q:what are ten names of natural pigments to make paint?
Q:colorfast pigment - define and explain the molecular structure that provides this property?
Pigments, are generally solids and are usually insoluble in the medium in which the pigment is being used. Pigments, are typically used instead of dyes in applications where color migration or bleeding is undesirable. One possible approach to create a colorfast pigment for use in something like toothpaste would be in a layered anion exchange material which is contacted with the dye under conditions in which a water-insoluble pigment is obtained. The water soluble dye and the layered anion exchange material would normally be contacted together in a liquid medium in which the dye has been dissolved. The layered anion exchange material is preferably a layered aluminate of some kind. Generally, pigments are graded by international standards for color fastness. Eight is the most color fast, and anything over six will do quite well out-of-doors. As ancient Frescoes, sand paintings, petroglyphs and other pure-pigment art demonstrate, certain pigments can remain in direct sunlight for thousands of years without any indication of fading. These pigments are earth, metal, and chemical colors that are neither dyes nor tints. Dyes and tints, such as alizarin crimson, berry juice, etc. will bleach quickly due to ultraviolet exposure that occurs in direct or indirect sunlight. Today most paints are derived from much different sources than they were as recently as fifty years ago. Real cadmium, cobalt, copper oxide, to name a few, are no longer used. They are now formulated to appear similar to the traditional pigments. They may be extended out with white, resulting in an appearance that can differ with traditional counterparts. For the most part these new colors are very colorfast and without the addition of medium or varnish they will not fade when left in direct sunlight.
Q:Do I need laser treatment for pigment dispersion syndrome?
Rubbing eyes probably does not relate to pigmentary dispersion syndrome. While pigmantary dispersion syndrome can cause pigmentary glaucoma. Most glaucoma is not pigmantary glaucoma.
Q:Pls Help,<Mac Pigment> How to Apply?
Mixing okorder.com/watch?v=tbKmWd_Fl... I believe you can use vaseline for this as well. Also, it sometimes helps to use a sponge applicator, and yes, wetting your brush works as well. Start with a LITTLE. If you get a whole bunch on your brush you're going to make a huge mess.
Q:Albinism effect on pigment?
Mammals and birds only have melanocytes (these produce varying amounts of brown or black pigment), so that's the only pigment that needs to be affected for them to display albinism. But other types of animals have multiple types of chromatophores. An albino snake, for example, would also need to have the cells that produce reds, yellows, and blues deactivated to appear white/colorless. For these animals to appear as albinos, all pigments would have to be affected.
Q:advantages of having accessory pigments?
Each photon has a particular wavelength, determined by the photon's energy. A pigment such as chlorophyll can only absorb photons in particular wavelength bands, matching the energies of available electron transitions to excited states. For chlorophyll, these bands are in blue and red -- the green color of most leaves is due to the waste light that is not absorbed by chlorophyll, while red and blue photons can be absorbed and used to power photosynthesis. An accessory pigment can absorb a photon that has a wavelength (color) outside of the bands that chlorophyll is able to absorb and can pass some of the absorbed energy on to chlorophyll, getting rid of the excess energy in another form, such as heat. A pigment might be tuned to absorb a photon of yellow light; the absorbed energy, stored in the excited state of an electron, is called an exciton (the photon becomes an exciton, so energy is not created or destroyed). The exciton can be passed to a chlorophyll, but only with the same energy as the red photon that the chlorophyll could normally absorb directly. The excess energy, the difference in energy between the yellow and red photon, must be dissipated in another form. This process allows a plant to harvest photons that would otherwise be unavailable to its photosystems. Consider how this would be an advantage to a plant living on a shaded forest floor, or to a planktonic cyanobacteria floating in the water below other photosynthetic algae, in regions where photosynthetically useful photons are scarce.
Q:Pigmented microorganism?
Pigments have many advantages for the cell. They can absorb light to be used in photosynthesis. Specific pigments absorb light in a specific range - so the more pigments the more light can be absorbed and used for photosynthesis. Pigments also protect the cells from damage by UV radiation. More recently it has been suggested that some pigments inhibit the growth of some microorganisms.

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