Mohammed Mohasin Shaikwww.shaikmohasin.wordpress.com

LET ME Know “LED“

Light Emitting Diode, a semiconductor diode that glows when a voltage is applied. It is also called as

semiconductor light source that converts electrical energy into light energy. LED is a tiny light source that fit easily into

an electrical circuit.

they do not have a filament that will burn out.

What is LED ?

Short History The LED started life in October 1962 by Nick Holonyak Jr, as a single red illumination in a

General Electric research lab in New York state. Monsanto develops the first commercially available LEDs for HP35 Calculator In 1976 – T.P.Pearsall creates the first high-brightness high efficiency LED’s for optical fiber

transmission wavelengths. In 1980 – LED development continues along the lines of increasing light output while

maintaining efficiency and reliability. In 1997 – Nicha Corporation develops the first high brightness Bluish-Green and Blue LED’s in

the world. Philips Lumileds introduced power LED’s capable of continuous use at 1watt in 1999. These

LED’s used much larger semiconductor die sizes to handle the large power inputs.

Now : The LED lighting revolution begins with the first official standardizations of LED’s and LED fixtures in many international countries. People are widely pay attention to this energy saving technology and LED lighting begin to flowering all over the world in peoples indoor and outdoor life.

Dimmable

Environmental Friendly

Directional

Energy Efficient

Why LED ?

No Heat

Quick Start

Long Life

Low Power Consumption

Why LED ?

No UV

No Noise

No IR

No Mercury

Why LED ?

Long Life – 50,000 Durable High Energy Efficient – Example : 120W = 250W Easy Installation Lower Maintenance Recyclable Good Visibility Quick Start – Quick Off

Key Features & Benefits

Fresh Food LED keep food fresh for longer

No Bugs LED do not attract bugs

LED Cool Facts

Where maintenance is frequent

Where there is need to reduce energy

Where areas need better visibility

Where areas need instant on illumination

Where to consider LED ?

“ EVERY WHERE “

Where we see LED’s

LED Indoor Applications

Indoor lighting is usually accomplished using light fixtures,

and is a key part of interior design.

LED can save energy in place of using traditional lighting, which

represents a major component of energy consumption in buildings.

LED Outdoor Applications

Outdoor lights are used to light roadways and walkways at night.

LED and photovoltaic luminaries to provide an energy-efficient alternative to traditional street

light fixtures.

LED Signage

In the old days of variable message signs which used

incandescent bulbs . Now trend is LED .

LED Signage makes a grand look , environmental friendly ,

visual branding and save energy.

LED Video Display , Signals & More..

A LED display is a video display which uses light-emitting diodes.

The Future

- Mohammed Mohasin Shaik

From traffic lights to Christmas lights and even more office lighting , roadway lighting also home lighting, light-emitting diode lights are an energy-efficient

alternative to traditional incandescent or compact fluorescent lights and are used in an increasing number of applications day by day.