מיקום
קבע כיוון יורד

60 לעמוד

led lights bulb

12 מוצר(ים)

מיקום
קבע כיוון יורד

60 לעמוד

12 מוצר(ים)

led lights bulb

History of LED bulbs

Where did , what colors are there , and when invented the LED lighting the first ? All you ever wanted to know about LED bulbs , and you had to ask LED light bulbs (also called Solid State Lighting ) are electronic light source using a semiconductor device , the transition of the electric current through it - emits light . These bulbs have no filament or gas , and they are not made from a tube of glass breakage , so long lasting . This fundamental change also distinguishes them from other conventional lamps , including incandescent , fluorescent lamps and discharge lamps gas . The first LED lights , red , developed in " General Electric " in the early 60s of the 20th century. Further , developed LED lights green and yellow ( during the 70s ) , which were installed in calculators , watches , guidance signs and other electronic items . Early 90s were first introduced LED bulbs colors yellow, red and green low yield of 1 lumen ( unit of measure for measuring light intensity ) . Late 90 LED bulbs began to replace the ordinary bulbs , led incandescent , use of lighting that tried to combine light of different colors. From 2000 to 2005 significantly increased the light output of the LED lights , and reached a range of up to 100 lumens . In addition, the market began to appear diffused LED bulbs white light of various colors ( hot, cold or light shade ) , which were used as light sources vein . LED bulbs are now very popular in many homes , and the big advantage is their power savings , high durability , and contribution to the environment. It is customary to distinguish between two types of LED bulbs - indication and illumination. LED bulbs cost of the first type is low , and they are primarily used electronic devices . In contrast, type LED illumination bulbs are of a higher electrical power and therefore are able to produce light intensities similar to those of conventional light sources , and elevated them. In Chinabuy.co.il site you will find a wide range of LED bulbs for any purpose , including the LED spot lights , LED car lights , LED recessed lights , LED track lights and gadgets in the field. Through them , you too can begin saving electricity and money , and contribute to the earth .