Basic of LED Lighting: An LED (Light Emitting Diode) is a special diode that uses a semiconductor chip to produce light when an electric current is passed through it. LED lights are extremely energy efficient and long lasting making them ideal replacements for traditional power hungry halogen, sodium and standard incandescent lights and can save up to 80% on household lighting costs.

With the advancement in technology in recent years, LED lights can be used in a wide range of applications in commercial, industrial and domestic lighting. LED Lights are energy efficient, cost effective, durable and have countless uses and functions.

LEDs don’t suddenly burn out like incandescent or CFL lamps, but instead gradually fade in brightness over time, a process known as lumen depreciation. The useful lifetime of a LED product is based on the number of operating hours until the LED is emitting 70% of its initial light output.

A typical incandescent lamp lasts about 1,000 hours; a comparable CFL lasts up to 10,000 hours. But quality white LEDs in well-designed fixtures are expected to have a rated useful life of 50,000 hours or more.

Color Rendering Index (CRI): the most useful measure of a light source's color characteristics is color rendering index (CRI). In general terms, CRI is a measure of a light source's ability to show object color "realistically" or "naturally" compared to a familiar reference source, either incandescent light or daylight. The CRI scale of 0 and 100, with 100 representing perfect color rendering based on illumination by a 100-watt incandescent light bulb. A light source with a CRI of 80 or higher is considered acceptable for most indoor residential applications.

 

Correlated Color Temperature (CCT): The correlated color temperature (CCT) is a specification of the color appearance of the light emitted by a lamp, relating its color to the color of light from a reference source when heated to a particular temperature, measured in degrees Kelvin (K). The lower the Kelvin temperature (2700–3000 K), the warmer the color of the light, while the higher the temperature (5000–6500 K), the cooler, and more bluish, the light appears.

Benefits of LED:

1. Long Life Span
2. Energy Efficient
3. Environmental Friendly
4. Durable
5. Zero UV Emissions
6. Instant Lighting and Frequent Switching
7. Low Voltage
8. Design Flexibility