LED is short for Light Emitting Diode. This is a kind of light source that uses semiconductor technology. They now come in ultraviolet form for anti-fraud purposes and also infrared wavelengths that produce very bright lights.
But how does it work?
This lighting fixture basically consist of semiconductor materials. It functions much like the other diodes. It also allows current to flow from one side to the other. However, it does not allow reverse current flow. When charge carriers flow into electrode junctions and those electrons passes through a hole, the energy level drops significantly as it releases photon, a kind of energy.
The band gap is a determining factor in this technology. Depending on this, the wavelength that is emitted varies. The early development of this lighting technology primarily uses gallium arsenide. But since then, technology has advanced. Because the materials have very lofty refractive measurements, the lighting produced is much brighter.
What are the advantages of using this lighting system?
Basically, it offers a much more efficient lighting technology. It produces significantly brighter lights compared to the normal flashlights. There are also lumens light available in the market today. With this type of LED, it uses 18-22 luminous efficiency.
However, it can easily deteriorate if you use it with a very high power. It can last long in low heat and low current supply. If you do not abuse your flashlight LED, it should last for many years. In fact, there are reports that say some LEDs manufactured way back in the 70s are still fully functional until now.
However, since there is an increasing need for more powerful lighting, this kind of device can work for up a maximum of 100,000 hours only especially when directed to high current and high heat.
What Are Its Uses?
It is a good emergency tool. The flashing LED technology can be used to attract attention. Since this light can be seen at a significant distance distance, it can be used as an attention seeker to ask for help.
With the mixture of LED colors, it can be used as a party light for festive occasions held at night. This is what is commonly used in special functions and large gatherings.
This also serves as a good lighting for extremely dark places such as caves. It can illuminate a wide distance compared to other forms of lightings. It is ideal for every home to have at least one LED flashlight.
