Light emitting diodes, also known as LEDs have really changed the way people think about lighting.

In 1879, Thomas Edison invented the first incandescent light bulb in a competitive community. The invention of the electrical light bulb was built on commutative work done by previous scientists and researchers. Edison was invited to William Wallace workshop to examine the Wallace’s prototype. Edison thought that the prototype has something wrong, “I believe that I can beat you making the electrical light. I do not think that you are working in the right direction” Edison told Wallace [1]. Therefore, he decided to do make his own electrical light and there race was started. After a week of his visit to Wallace workshop, Edison was already invented the first light bulb. The success that was achieved by Edison led to a big success for his company,

The incandescent light bulb was a phenomenal discovery that occurred during the late 1800’s and was mainly invented by a man named Thomas Edison. It became a recent essential product that we humans use on a daily basis in many more appliances than one. This invention was created in 1890 in New Jersey by Thomas Edison to help people to be able to work during the night after night had fallen and to make people’s lives easier ("Edison's Lightbulb”). It helped many people in an amazing array of different ways, however, everything has it’s disadvantages, and so did the incandescent light bulb ("History of the Incandescent Light.”)

The light bulb had already been invented before but Thomas Edison improved and perfected the light bulb. The new light bulb that Thomas invented lasted for longer periods of time .Thomas thereafter went on to invent an electrical power system, so that people would have electricity and could use the light bulbs at home.

The light bulb was an amazing invention when it was first created and it still is today except people overlooked a few things about the first light bulb - also known as the incandescent light bulb. The things that people overlooked on the incandescent light bulb was the fact that it guzzled up so much energy. Another problem with the incandescent light bulb was that it emitted carbon dioxide. One final problem with the incandescent light bulb

The Light bulb changed the lives of many people; it had a big impact on illuminating the night. The night was always dark until the light bulb was invented by Thomas Edison in 1879 and ever since then, the night has been able to be bright if people wanted it too. The story of the light bulb begins long before Edison patented the first commercially successful bulb in 1879; in 1800 Italian inventor Alessandro Volta developed the first practical method of generating electricity, the voltaic pile, made of alternating discs of zinc and copper, the pile conducted electricity when a copper wire was connected at either ended. An English inventor by the name of Humphrey

LED Bulbs: Finally, cut back on your winter energy bill by replacing your old fluorescent lights with LED bulbs for just $5.99 for a packet of two.

The light emitting diodes (LEDs) are low energy, lighting devices with a long lifespan and low energy consumption. The LEDs use specialized power

He invented an electric battery by connecting wires into the battery and carbon, the carbon produced light. Later on, an English physicist, Joseph Wilson Swan wanted to create a light that lasted longer and worked better. He discovered that carbon paper filament worked well but burned too fast. In 1878 he developed his electric lamps. In 1877, Charles Francis Brush made some carbon arcs to light up a public square in Ohio, they were only used in few streets and stores.

Have you ever wondered were led lights came from..? well I Daniel Mcfarland was born in Pennsylvania on February, 27 1869 and attended Lehigh University for college from 1884-1889. I studied electrical engineering, After experimenting with different sources, I started using glow discharges to produce light. In 1986 I had devised a glow discharge lighting system, creating an extension to the Geissler tube. The lamp utilized nitrogen and carbon dioxide as the luminous gas because they emitted a soft white light. My technique was the first commercially variable light source based on gas discharge instead of incandescence, and it's considered the predecessor to contemporary neon and fluorescent lighting.

LED lighting should reduce energy costs by using at least 75 percent less energy than incandescent lighting. This will save on operating expenses. The maintenance costs

The author erroneously assumed that the cost of LEDs is same as that of the incandescent lamps by just considering its initial cost. What if the maintenance cost of LEDs is more than that of an incandescent lamps? This would not only will make the author’s argument wrong but also will make it baseless .Also the author states that the LED bulbs are brighter than the incandescent lamps what if the bulbs consume more energy than the lamps. The lifetime of both the components is not compared which creates a loophole in this argument because if the LEDs last long then the cost will decrease if they don’t then the cost will increase.

Because the long life span of LED lights, the savings in maintenance to purchase, stock and change the conventional light bulbs and significant energy savings when it comes to replacement due to the long operational life times of LED lighting.

For pearl necklaces, they would use polarizers and color filters to absorb a portion of incident light, and the light efficiency, brightness, and operating life of battery powered liquid- crystal displays were poor. Then they started using linear polarizers which now directly transmit one polarization direction of light and reflect the other, which this process strongly enhanced the light efficiency of the polarizers. Also, they generated bright colors in the visible wavelength.

Can you ever imagine a world without light bulb? Before light bulb was created, the night can only be lit by the moon and stars. People working and traveling after sunset could only use candles or oil lamps, which caused many inconveniences. Without any bright light, moving inside your own house even seemed dangerous. However, things changed after the ambitious inventors brought their bright idea, which was to light the world, to life. The invention and the commercialization of light bulb not only changed the way people live, but also became a technological breakthrough for future energy use in our daily lives.

CFL lightbulbs entered the market at an expensive price, yet the consumers continued to purchase them. Knowing the bulbs “paid for themselves,” the tradeoff was worth it. They used 75% less electricity than incandescent bulbs, lasted 10 times longer and emitted 450 pounds fewer greenhouse gasses. In previous years consumers relied on incandescent lights that were reliable and much less expensive than CFLs. CFLs were backed by utility companies that also wanted the product to be a success, which was obvious through their coupons, trade-ins and price promotions. Aside from the many benefits CFLs offered to consumers, market research showed there were misconceptions that caused hesitancy in consumer adoption. The original product had problems such as light flickering and buzzing, needed continual usage to result in energy savings, could not be used with a dimmer, and recycling the bulbs was not convenient as special measures were needed to dispose of the bulb.