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The Benefits of the LED Light Bulb

The LED light bulb is extremely energy efficient. However, for a long period of time, the cost of manufacturing this type of lighting product has been high. Due to this limitation, usage of the LED light bulb has been restricted to electronic displays and instrument panels.

However in recent years, researchers at a university in the U.S.A. have created a method that would replace the sapphire stones, used in the production process, with cheaper silicon wafers.

With this barrier to more widespread use now supposedly removed, we can look at the real benefits to using this type of lighting.

Much More Efficiency

Compared to incandescent or CFL (fluorescent) light bubs, the LED bulb is far more efficient. It uses one-third the electricity of the incandescent bulb and one-thirtieth that of CFL or fluorescent lighting.

Using an LED light in a torch or flashlight as opposed to an incandescent bulb, can extend the battery life up to fifteen times over.

No Harmful Toxins

Unlike in the fluorescent bulb manufacturing process, there is no mercury used in producing LED bulbs. This is especially important with LED manufacturers augmenting their marketing towards consumer and retail-oriented markets.

Highly Cost Effective

The LED light bulb was very expensive when it first came on the market. Therefore its usage was mainly in commercial buildings, where the maintenance and replacement costs could be recouped over longer periods of time.

In recent years, the cost has gone down, considerably. Also, it seems likely that the cost will continue to decrease over the next few years. More and more, LED light bulbs are being designed for use in the home. Concerns over their limitation to certain areas of the home, such as under-cabinet and recessed lighting have been addressed. There are now LED lights that are fitted with a diffuser, which allows the naturally one-directional beam to spread out – much in the way that incandescent bulbs do.

Robust and Sturdy

LED light bulbs are not fitted with filaments. When a regular incandescent bulb is shaken or even moved, the filament is at risk of breaking apart. Bumping or jiggling an LED light bulb around a bit will not incur the same type of damage.

This makes the LED light bulb a great fit for areas in the home where accidents are frequent and likely to occur.

Longer Lasting

LED bulbs can last up to ten times as long as compact fluorescents. Also, they usually outlast any ordinary incandescent bulbs.

Cool to the Touch

LED light bulbs do not generate a lot of heat during usage. An incandescent bulb will build up almost thirty times the amount of heat that an LED light will produce in the same period of time.

The low amount of heat generated by the LED light bulb makes it a perfect choice for climates that are hotter. This benefit can definitely result in much lower air-conditioning costs.

The benefits listed above are great reasons to start replacing incandescent or fluorescent lighting with LED light bulbs. Their versatility and low energy costs make them an ideal choice for both environmentally concerned individuals, as well as those looking to save on long term energy bills.

What is a LED?

The LED diode (Lighting-Emitting Diode), appeared back in the early 60, is a semiconductor device which if it is crossed by a current through the PN junction emits photons. A LED transforms the electric energy into a luminous energy.

The color (wavelength) of the emitted light, the efficiency of the electro-optic conversion and so the obtained luminous intensity depend on the nature and condition of semiconductor which is used and it extends from the infrared, to the visible light gamma to the proximity of ultraviolet.

LED are reversible devices: in effect, if the junction is directly exposed to solar rays or to a strong luminous source on the reo-hole (REOFORI) is possible to notice a tension.

What are Lumens?

Lumen (symbol: lm) is the unit of measure taken by the International System with which one measures the luminous flux that a luminous source emits.

For example, an European standard incandescent lamp of 100 Watt 230 Volt emits about 1200-1400 lm equal to 13.8 lm/W.

What is CCT?

CCT, Correlated Color Temperature, is a characteristic of the visible light which has a remarkable importance in the lighting applications: in the illuminating engineering is a term to quantify the light shade.

The color temperature of a luminous source is determined comparing its shades with those emitted from a theoretic warmed black object; for sure a real source is different from an ideal black object but the analogy stays valid.

The unit of measure of color Temperature is Kelvin grade (°K).

Normally when a light is warm, in the reality this corresponds to a temperature of low color, otherwise a major temperature produces a definite light normally cold.

What is CRI?

CRI, Color Rendering Index, is the quantitative measure of the capacity of a luminous source of reproducing faithfully the colors of different kinds of objects towards an ideal light or a natural light source.

Lighting sources with a high CRI are correct in critical applications for the naturalness of colors like in photography and film-making.

The index gives a number till 100, reference value for ideal light.


Low Pressure sodium 1800 ~5

Mercury Vapors 6410 17

Metallic Halogenurs Quartz 4200 85

Power Led ‘High CRI’ 2700~10000 90

Incandescent/Halogen Lamp 3200 100

In which applications we can use LEDs

  • Architecture Lighting
  • Entertainment Lighting
  • Commercial Lighting
  • Residential Lighting
  • Emergency Lighting
  • Street Lighting
  • External/Internal Parking Lighting
  • Advertising and Billboards Lighting
  • Vehicle/Camper/ Boats Lighting
  • Sensitive objects to infrared and ultraviolet Lighting
  • General signals Lighting

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