What is the lifetime of an electric bulb?

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The lifespan of an electric bulb is about 1000 hours.

Today's bulb

20 percent of the electricity in the world is spent only on light. This light bulb is a 19th-century discovery. They are able to convert only five percent of electricity into light. Therefore, new types of electricity saving lights are being replaced in their place.

The saving capacity of new lights is very large. If all the old bulbs around the world can be removed and replaced with new power-saving lights, 40 percent of the electricity used to produce light can be saved. Not only this, by 2030, carbon dioxide emissions can be reduced by 16 billion tons by 2030, which is equal to twice its annual emissions in the US.

The data collected by the renowned Worldwatch Institute in a study is very encouraging. The use of new electricity saving lights is also increasing in the meanwhile that their sales have tripled to 4 billion annually in the same decade.

Australia has even decided that after October 2009 there will be a ban on the sale of the bulbs still in use. There are also plans to ban the sale of 100-watt bulbs in European Union countries from September 2009 and to remove all types of old bulbs from the market by 2012. When has he been banned in Cuba? They will be banned next year in New Zealand and by 2012 in Canada.

Tight tube light

Power saving CFL light instead of a bulb

From a technical point of view, modern power-saving lights are nothing but twisted or twisted tube lights. In English, they are called Compact Fluorescent Light or simply CFL for short. The efficiency of an ordinary bulb, patented by Tomas Alva Edison in 1879, is only five percent, while the efficiency of these new light-saving lights is 25 percent, which means they use electricity five times better than ordinary bulbs. The manufacturers also say that because the lifespan of a power-saving CLF light is many times longer than that of an ordinary bulb, 100 liters will be saved by 100 euros, ie about six thousand rupees behind each light in 10 years of use.

High food

Nevertheless, the future of lights with these bent or tight tube lights is not as bright as it seems today. The German magazine Oekotest tested 16 models of such lights and found that the matter was like a high-stakes, dull dish. Most of the lights were not as bright as written on the packing. His light was not as good as it should be. They are juggling and their lifespan is often not as long as it is written on the packing. The biggest drawback is that they contain mercury, which is very dangerous for health. Therefore, spoiled lights will have to be disposed of in a special way, separate from normal household waste.

LED lights replace CFL

Light ruthlessness and researchers are currently looking for even better options. In short, LED means Light Emitting

The LED light with light-emitting diode

A light-emitting diode called a diode may be one such option. Physician Shouji Nakamura of Santa Barbara University in the US says that LED lights are twice as efficient than electricity-saving lights of the moment:

"The energy-efficiency of a light-emitting diode is very high - about 50 percent. This means that this diode converts half the amount of electricity used to the light. With LED lights we can save much more power."

LED is an electronic chip

The light-emitting diode is a small electronic chip by itself. As the electricity passes through the chip, its electrons are first charged and then, almost immediately, emit their charged energy in the form of light. In this way, they convert electrical energy into light energy. The small red-yellow-green lights we see in the stereo system are light-emitting diodes. Shuji Nakamura was the only white LED chip in the 1990s

Laid the foundation for the manufacture of light-emitting diodes. This diode will now also illuminate homes and roads:

"Light-emitting diodes are almost immortal, they have a lifespan of about one million hours. An ordinary bulb only lasts for a thousand hours. Light diodes are not as hot as a bulb is heated. They have There is also no mercury or any other poisonous thing. "

Here, LED hand lights with light-emitting diodes and cycle lights are also available in the market for a few years. However, Detlef Homel, a physicist from Bremen, says that she is not able to provide so much light so that it can be used in cars or even homes:

"To make the headlight of cars with LED will have to go to the end. Here many challenges of physics are facing us."

Plastic will illuminate homes

LED lights with light-emitting diodes are still very expensive. They have to be cheap to become widely used. Meanwhile, an alternative is also being prepared in laboratories - such light-emitting plastic molecules, also known as Organic Light-Emitting Diodes - OLED or only OLED. With their help, completely new types of lights and lamps can be made, as Ullie Lamar, a physicist at the University of Karlsruhe, explains:

"They can create light sources with long and wide shapes that can be integrated with the design of the house. For example, they can extend to the entire wall or the entire roof."

But, there is still time for this twinkle to come, although OLED screen television sets have come on the market:

"One of the biggest questions is how much light the light source of OLED will give, how much light will be consumed and how durable it will be. Their production is not so simple that they can be called cheap. They compete with that bulb of Tom Edison, which has been refined and refined for more than a century and can be made at a very cheap price in billions. "

In other words, it will take a decade or so to get the glowing plastic lights to market.