White LED two ways to achieve

picture qzz10011  says:

White light is a multi-color mixed light, can be perceived by the human eye white light at least two or more wavelengths of light. For example, the human eye at the same time by the red, blue, green light stimulation, or both by the blue and yellow light stimulation can feel white light. According to this principle, people can design a white light LED light source. In accordance with the existing technical capacity, there are two possible options. The first, the use of red, green and blue three-color LED, according to the strength of the light into a matrix, the three shades of light to produce white light. Bath Fans Bathroom Fans, Lights, Exhaust Fans And More

However, the LED is a PN junction, which, like all PN junctions, follows the characteristic of the negative temperature characteristics of the PN junction. In the LED device on the performance of its forward current with the temperature rise and decline, and its light output will also decline with the temperature drop, different LED drop degree is very different. When the temperature rises to 120 ℃, the green light output, only 20 ℃ when 60%, while the blue LED can reach more than 90%, the result is mixed with white color. Ford Oem Fog Lights

The second is the use of blue LED irradiation of a fluorescent material to produce blue light complementary with the yellow screen using the principle of the lens will be complementary yellow and blue light to be mixed, you can get the white light required by the human eye. At present, people are also developing purple and ultraviolet light series of special phosphor, the phosphor wavelength of 370 ~ 420nm, the use of coating method, this type of phosphor with UV or UV light can also produce white light LED. Dimmable LED Bulb Ebay

Posted at 2017-07-17 06:52   64 views
Login to post a reply    
picture ppst  says:

Suddenly Nike Air Sneakers the Coach Bags On Sale report of Ugg Outlet Online Store firearms came Nike Pas Cher Femme from[227] the open adidas store in モンクレール レディース front, Nike Shox discount Sale then reebok running shoes followed nike sb stefan janoski two Adidas Yeezy Boost 350 For Sale yells, loud Louboutin Wedding Shoes and Nike joggesko agonising, Christian Louboutin Heels and afterwards Cheap True Religion Jeans silence. Nike Air Huarache For Sale What Zapatillas Air Max had new pandora charms happened? Yeezy Black Curiosity Jordan Schoenen prompted me Timberland Outlet to Hugo Boss Sale rush Yeezy Boost Sale Online into Yeezy Men the trench, leaving Pandora Style Beads a Original Ugg Boots dead Ugg Pas Cher Femme soldier half buried, and make inquiries. All 23 IS BACK Store the workers suivre un envoi had ceased Cheap True Religion Jeans their Uggs For Cheap labour, they stood Boty Nike Air on Pandora Store Sale the ugg factory outlet fire-steps nike jordan shoes staring into günstige nike schuhe the Hogan Outlet void in christian louboutin outlet front Discount Ray Ban Sunglasses of them, their Nike Air 90 ears Cheap Toms Shoes Outlet tensely Soccer Boots Outlet nike strained. Something must toms sale have Doudoune Moncler Pas Cher happened to fitflops sale uk the Pandora Store patrol, probably Nike Zapatos the air force one pas cher officer huarache sneakers and Abercrombie and fitch store two Nike Air Damen men had been Nike Air Max Goedkoop surprised by the enemy Negozi Pandora and Pandora Store killed....

As Moncler Sale we watched, three figures suddenly nike sneakers emerged converse store from the Mens Nike Air Max greyness Adidas Neo Discount Sale in New Nike Shoes front, North Face Outlet rushed Boutique Ugg up Air Nike to scarpe nike the cheap uggs for women parapet, nike air jordan pas cher and Discount TOMS flung Nike Outlet themselves ジョーダン スニーカー hastily Nike Factory Store into Nike Soccer Cleats Boots the nike air max running shoes trench. The listening Air Max 90 patrol had returned. retro jordans for cheap Breathlessly Nike Huarache Womens Cheap they newest lebron shoes told ugg clearance a Portafoglio michael kors story.

They had examined the Air Max Femme enemy's wire Hyperdunk 2014 and were on the way back adidas outlet when one Vans Black Sneakers of Nike Air Max Sale the men goedkope nike air max stumbled Moncler Jackets Discount Marketplace into cheap nike air max a nike air shell-hole Jordan Shoes Air on Nike Shox Cheap the new yeezy shoes top of Ray Ban Sunglasses Cheap three Germans Adidas Yeezy Cheap who Adidas NMD For Sale were toms shoes outlet probably Nike Air Jordan 11 asleep. zapatillas running The Cheap Toms Outlet Store Boches scrambled to their Bottes Ugg Femme Pas Cher feet and nike schuhe günstig faced Chaussure Air Max the New Air Max 2017 intruders. Canada Goose Womens Coats The louboutin heels officer fired at chaussure Nike homme one and killed him instantly, one Jordan Shoes For Cheap of Canada goose dam our Jordan Sneakers For Sale boys ran new jordan releases another Air Max Sneakers through Ray Ban Sunglasses Online the heart with the Michael Kors Outlet bayonet, the third ADIDAS NMD SALE ON LINE German Adidas Superstar Sale Online got a crack on the head with womens nike air max a zapatilla adidas rifle-butt and Canada Goose Outlet collapsed, Cheap Retro Jordans For Sale yelling. Then the listening patrol Kobe Shoes Nike rushed Cheap Air Max Trainers hurriedly Moncler Outlet Store in, Yeezy Shoes Discount Marketplace told nike mercurial soccer cleats their Michael Kors story and consumed Adidas Superstar extra Soccer Boots Outlet nike tots Adidas Originals Sale of Nike Store rum adidas schoenen when Air Jordan Retro Sale the Doudoune Moncler Site Officiel exciting nike tn pas cher narrative was Stone Island Outlet finished.

The nike shoes morning country TOMS OUTLET was Discount Air Max covered with Nike Shoes Discount Marketplace white Christian Louboutin Shoes Outlet fog; Bois Hugo, the wood Chaussure Nike Pas Cher on our left,[228] botas de futbol stood out Nike Tn Requin Pas Cher an Adidas Originals Stan Smith island Nike Online Store in a vans shoe store sea Zapatillas Nike Air Max Baratas of milk. Twenty Moncler Outlet Online yards Michael Kors Clearance away Uggs Pas Cher Soldes from the canada goose jackets on sale trench Sac a main michael kors was the thick Nike Shoes Online whiteness, the prada outlet unknown. Cheap Louboutin Heels Our Nike Shoes Sale Store men coach factory outlet online roamed Cheap Nike Air Huarache about Toms Factory Outlet the Discount Christian Louboutin Shoes open Cheap Nike Huarache picking up canada goose jacket outlet souvenirs Doudoune Moncler Femme Pas Cher and chaussure basket homme burying Ugg boots Sale dead. pandora beads Probably chaussures nike pas cher in Cheap Air Max the Nike Air Max Cheap mist the Air max dam Germans were Descuentos Nike at pandora jewelry store work, too.... nfl store All was very Pandora Official Website quiet, not Air Max Kopen a sound TOMS SHOES OUTLET broke Chaussure Nike Air Max Pas Cher the stillness, Cheap Michael Kors Handbags the riot of Nike Roshe Run war was Nike Air Pas Cher choked, suffocated, pandora outlet store in Michael Kors Handbags Discount the hogan scontate cold, UGG BOOTS FOR WOMEN soft nike sportschuhe fog.

All at Official NHL Jerseys once an Air Max Pas Cher eager Nike Air Women breeze broke Cheap Michael Kors Tote Bag free TOMS For Sale and swept Nike Free Run 5.0 Womens across ugg store the Ugg Pas Cher En France parapet, Adidas Originals Superstar driving Cheap Real Jordans the zapatos de futbol nike fog Boost Yeezy Sale On Line away. cheap uggs In Scarpe Air Max the Adidas Shoes Discount Marketplace space zapatillas nike baratas of Canada Goose Outlet five seconds Toms Outlet Online the open Jordan Store was Scarpe Nike Scontate bare, Nike Roshe Run Sale the moncler jacket sale cloak Pandora Outlet which Billige Nike Sko covered it was Air max levně swept Official Toms Shoes Outlet off. Then we Adidas Soccer Cleats Cheap saw longchamp bags on sale many things.

billige nike sko

1 - 2017-07-21 07:42
picture nicewatch  says:

Oyster monobloc middle case, Replica Watches UK screw-down caseback and winding crown) made of Rolesium combination of 904L stainless steel superalloy and 950 platinum Rolex Replica polished finish; diameter 40 mm hublot big bang replica bidirectional rotating bezel made of 950 platinum, sand-blasted finish, polished raised graduations; screw-down crown with crown guard and Triplock triple water-proofing system; scratch-resistant sapphire crystal with

2 - 2018-01-01 05:21
Page:   1

Login to post a reply