Compare incandescent and LED - which is better ?

little history

to help you understand the difference between the appearance of the two options, and thus the difference in what was the scientific and technical progress, will present the following facts comparison of incandescent lamps and the LED on the date of the invention:

• first light source (tungsten) was patented in 1890ies of the Russian engineer Alexander Lodygin.At the same time the first attempt can be considered as the invention July 11, 1874 - torch light.
• As for the LED, the first of which was visible glow, invented in 1962.The man who invented LED lighting - Nick Holonyak, American scientist.

As you can see, even if you compare the date of the invention of alternatives, you can see a huge difference in almost a century.Nevertheless, the oldest light still "fighting for a place under the sun", which is its great advantage.

power and light output

When installing lighting in the apartment the first thing produced design work.One of the most important indicators is the calculation of the light output device.In the more outdated light bulbs light output ranges from 8-10 lm / W.As for the LEDs, their light output efficiency normally be in the range of 77 lm / W, while there are also models with an indicator 120-140 lm / W.From the values ​​given above shows that lumens LED better than the alternative in 7-12 times.

you to understand how it will affect the comparison of incandescent lamps and LED light sources for power, give the appropriate table:

can see that the diode power is less than 5 times and this luminescence efficiency and brightness will be about the same.

If you have decided to design the lighting in the house, be sure to rely on the following table comparing the incandescent and LED power:

to independently calculate the luminous efficiency light bulbs, you need its luminous flux (indicated on the package in "lumens" on power "kW"), as a result you get the desired value.For example, if the LED light output is 1000 lumens, and the power of 13 W, the return will be 76.9 lm / W.

heat dissipation

second, no less important point of comparison LED lamps and bulbs - release of heat from the product.The glass bulb of the filament lamp can be heated to 250 degrees (although the temperature is typically in the range 170).That is why such products are flammable, and is not recommended to use them when installing the wiring in a wooden house.In addition, it is difficult to unscrew the light bulbs Illich from the socket, if they have worked for a long time before that (can be burned).LEDs in this regard proved to be the best available options.The maximum heating temperature of less than 50 degrees, which allows their use in any room.

Lifetime

But this figure is one of the main advantages of diodes in comparison with incandescent lamps.These light sources can work out more than 50,000 hours, as the manufacturers claim.In older lamps lifetime is typically less than 1000 hours, which is 50 times smaller.For reasons of economy better once expensive to buy, but longstanding bulb than every few months to change the budget item.

Here too there is a nuance which you should know.The high durability of the LED indicators are not the exact value.The fact that the diodes fade with time (degraded), so after 40,000 hours, you will not be able to enjoy the glow that was immediately after purchase.

efficiency

Efficiency should also be taken into account when selecting products.Efficiency shows how much electricity is converted into light, and how much thermal energy (actually because of what is happening and the bulb heating).LED lamps have the efficiency is about 90%, which is very high in comparison with an alternative embodiment, in which light passes only 9.7% of the electricity.

Environmental

Unfortunately, many people do not pay enough attention to the preservation of environmental ecology.People emit fluorescent lamps in trash cans, despite the fact that the destruction of the bulb to evaporate the mercury, which is harmful to both nature and the people around health.

In this respect, the comparison of incandescent lamps and the LED does not put forward a variant of the lead.As diodes and the glass bulb can be simply discarded in the trash without special disposal.

Argued that Ilyich lamp produces infrared and ultraviolet radiation, causing a negative impact on human health.In this respect, LED-diodes are completely safe.

cost

And, of course, the most interesting question that people often ask how profitable to buy LEDs, because they are much more expensive.Today on the forums on the Internet, you can read a lot of reviews that deny or justify saving LED lamps.Lowest price-quality diode bulb is 300 rubles, while in alternative cost 20-25 rubles.Here you already have to analyze yourself what is more important to you - long service life and high levels of efficiency, a low cost and excess overpayment.On the basis of this comparison can be made cost-saving.Power diodes have 7-8 times lower in price is 10 times greater.Consider life and even without any calculations can be understood that it is cheaper to buy LED lamps.Visually see a comparison of efficiency of LED lamps and bulbs you can in the table below:

Other indicators

also would like to on the basis of tables to compare incandescent and LED on grounds such as:

• amperage;
• fragility;
• color temperature;

All these comparisons incandescent lamps and LED light sources in the amount of give us a general idea that it is better to choose for the house and the apartment!
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