Light-emitting diodes have long been used as indicator lamps for devices, such as alarms, clocks, signal lights, etc. The increased use of this type of lighting for general purposes is due in large part to the fact that the technology of its materials is becoming more advanced.

Texas Instruments commissioned the first commercial light-emitting diode product, the infrared diode, in 1962, as a replacement for neon indicator lights and displays. Their use in electronic test and laboratory equipment and electrical appliances such as calculators, radios, telephones, and televisions came in the late 1960s, but they were expensive. Infrared and visible lights were very expensive and therefore had little or no practical use.

Earlier versions emitted low to medium intensity red lights; however, modern versions span infrared, visible, and ultraviolet wavelengths with much higher brightness levels. The simple basic premise of a light-emitting diode is the release of energy in the form of photons, the effect of which is known as electroluminescence. The semiconductor energy band gap within the device determines the color of the light produced.

The advantages of light emitting diodes are several, the main ones are:

• Longer useful life

• Lower energy consumption

• Faster power on

• Smaller size

• Robust appearance

These lighting fixtures for illuminating larger spaces such as hallways, display spaces, and offices require precise current and heat management compared to fluorescent lamp sources.

With the advancement of this technology, light output has increased along with the standards of reliability and efficiency. The development of high power white lighting as a light source is slowly replacing fluorescent and incandescent lighting. Industries such as advertising, automotive, aviation, and traffic signals are making use of this technology to enable the display of sensors, text, and video. Communications technology is another area where this product is finding increasing acceptance. DVD players, household appliances, and remote control devices are equipped with light-emitting diodes. A new form of wireless Internet, Li-Fi or Light Fidelity is another high-end development.

production sales

With the success of light-emitting diodes for commercial applications, many companies are leading the way in the design and manufacture of light-emitting diode power supplies and drivers. Indoor and outdoor lighting applications with this type of technology use outputs ranging from 12W to 300W!

Some of these products are very interesting and technologically advanced and have many options such as:

• Constant current – single channel

• Constant current – multichannel

• Constant current – interior lighting

• DC to DC (Solar) – multiple channel

The applications for this are wide-ranging: accent lighting, landscape lighting, industrial lighting, specialty lighting, etc. are a few uses.

Light has transformed our lives in many ways; without it, our existence would be a black and empty space.