What is LED Light?
A light emitting diode is a semiconductor light source. It emits light that is visible when an electric current pass through the device. The light although not adequately bright but, in most LED lights, it is monochromatic i.e. with a single-color pulsating in a single wavelength.
LED is the latest and most phenomenal technological advancement in lighting or illumination industry.
Advantages of using LED lights:
Owing to its less energy consumption, it is a great option when it comes to buying a light. It is safer and produces less heat than conventional incandescent lights mitigating the risk of combustion or burning sensation of a finger when touched. LED lights are 80 percent more efficient than traditional lamps. About 95 percent of the energy in LED is converted into light and only 5 percent is wasted as heat. A material used for manufacturing LED lights is epoxy lens glass which is non-breakable in nature. LED lamps have a long lifespan and their electrical efficiency is several times greater than incandescent lamps. They are phenomenally more efficient than most lamps. Some chips reported being able to emit greater than three hundred lumens per watt. The projected growth of the LED market is estimated to be more than twelve-fold over the next decade, i.e. expected to about $25 billion by 2023.
LED light contains no toxic matter and therefore, is safer to use. Most of the corporate offices use fluorescent lamp which contains poisonous mercury. This contaminates the environment when disposed to landfill. For the fluorescent lamp, disposal has to be arranged through a registered waste carrier. A changeover to LED avoids disposal cost and protects the environment.
LED emits the superior quality of light scattering it in a single direction in opposite to another type of light which emits light in all directions. Thus, other lights emit light where not needed thus wasting energy. Thus, fewer LED light is required to get the same illumination as other lights can. A lifespan of LED is more than other lights which results in reduction of the frequency of replacement. Also, due to its longer lifespan, manufacturing requirement and need for resources are also decreased.
Unlike the fluorescent lamps, LED lights emit bright light instantly and need no warm-up time. The life of fluorescent lighting is also reduced by frequent switching on and off. LED bulbs need much less wattage than the incandescent lamp that is why they are more efficient and long-lasting than conventional lamps.
LED is environment-friendly
Taking care for the environment is the responsibility of all citizens. LED lights provide a lot of environmental friendliness as indicated above.
Disadvantages of using LED lights
The initial cost of LED is usually higher. Degradation of a LED die and packaging materials reduces light output to some extent.
LED is temperature sensitive and is the higher dependency on the ambient temperature.
Some LED lamps are made to be directly compatible with incandescent or fluorescent lamps. Most LEDs do not emit light in all directions, and this feature affects the design of lamps. The light output of single LED is less than that of incandescent and compact fluorescent lamps; in most applications, multiple LEDs are used to form a lamp, although high-power versions are now available in the market.
LED lights, as their name suggests operating as diodes, run on direct current (DC), whereas mains current is alternating current (AC) and usually at much higher voltage than the LED can accept. Although low voltage LED lamps need to contain a circuit for converting the mains AC into DC at the correct voltage. These circuits contain rectifiers, capacitors and may have other active electronic components, adding to the overall cost.
In the end, it can be concluded that in spite of certain disadvantages, LED technology has a further scope of development in future and has more advantages than other conventional lamps.
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