lundi 28 janvier 2013

LED Flashlights: The Evergreen Light Source

The first flashlight was invented by David Misell in 1899 in New York. David Misell devoted all his time and energy in promoting the device he had invented as he perfectly understood its potential. His efforts did not go in vain as it soon became the most wanted lighting device.
A flashlight is a portable light source which can be easily held in hand. it can be conveniently used as it is not very bulky. It is not a very complicated gadget, but a simple device made from some very humble components. The basic model consists of a tubular structure which houses the batteries. One of the ends has a small bulb mounted in a reflector. A lens is used to safeguard the reflector and the bulb. A switch is also provided to switch on and switch off the device. Even today, almost all the flashlights use these basic components.
Over the centuries the external paraphernalia of the device have undergone certain changes to keep up with the changing trends in technology. The humble flashlight has now become more modern with better design, bulb, and look. The modern world believes in style, and keeping this in mind the manufacturers keep coming up with novel ideas to upgrade their gadgets.
The first innovation in this field was in the batteries. In the initial years, dry cell batteries were used to give power to the bulb. These batteries were not rechargeable. They had to be replaced when they got over. The incandescent bulbs were used which emitted yellow light. Now, the trend has changed. The size of the flashlight has remarkably reduced. The batteries also have become smaller in size and are rechargeable. The most recent ones have inbuilt rechargeable batteries. The device has to be just plugged in to get recharged.
This age seems to belong to the LED lighting bulbs. They seem to rule the market and have invaded almost all the areas where lighting is required. The LED or the light-emitting diodes are now being extensively used in flashlights due to a number of reasons. The light emitted by the LED bulbs is white which makes the viewing of objects in the dark much better. The life of the battery gets enhanced if LED bulbs are used as they consume less power as compared to the incandescent bulbs. The beam produced by the LED bulbs is tightly-controlled and powerful. The LED bulbs have much longer life than the incandescent bulbs. They are sturdy and not as fragile as the normal incandescent bulbs. Once they are installed, they continue to beam for several years.
The LED flashlights are shockproof and waterproof and can be used for patrolling, travelling, climbing, camping, hiking, or fishing.
You are welcome to visit online to get more information about various types of LED Flashlight and LED Strips in different specifications to suit your requirement.


Article Source: http://EzineArticles.com/7465783

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