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A light-emitting diode (LED) is an electronic light source. LEDs are used as indicator lamps in many kinds of electronics and increasingly for lighting. LEDs work by the effect of electroluminescence, discovered by accident in 1907. The LED was introduced as a practical electronic component in 1962. All early devices emitted low-intensity red light, but modern LEDs are available across the visible, ultraviolet and infra red wavelengths, with very high brightness.

LEDs are based on the semiconductor diode. When the diode is forward biased (switched on), electrons are able to recombine with holes and energy is released in the form of light. This effect is called electroluminescence and the color of the light is determined by the energy gap of the semiconductor. The LED is usually small in area (less than 1 mm2) with integrated optical components to shape its radiation pattern and assist in reflection.

LEDs present many advantages over traditional light sources including lower energy consumption, longer lifetime, improved robustness, smaller size and faster switching.

Applications of LEDs are diverse. They are used as low-energy indicators but also for replacements for traditional light sources in general lighting, automotive lighting and traffic signals. The compact size of LEDs has allowed new text and video displays and sensors to be developed, while their high switching rates are useful in communications technology.

Environment Friendly
• no hazardous materials like mercury and lead.
• safe to use and dispose
• no IR or UV in beam output
• WEEE, RoHS and EuP compliant

Energy Efficient
• produce more light per watt than incandescent   and fluorescent bulbs
• an 80 watt LED lamp can easily replace the   brightness of a 250 watt metal halide lamp
• converts 70% of power to light
• emits minimal heat; reduces cost of air
  conditioning

Extremely Long Life
• more than 50,000 hours
• eliminates costly periodic replacements and   maintenance

Durable
• solid state lighting has no moving parts
• resistant to thermal and vibration shocks
• dim over time; no abrupt burn-outs

Permanent Savings
• energy efficient = 5 times more efficient than
  metal halide and halogen
• maintain their illumination up to 70% its lifetime
• low DC voltage operations
• direct light output for increased system
  efficiency
• lower overall total cost of ownership

Flexible application and Illumination Control
• wide range of usage for indoor or outdoor   applications
• light up instantly; suitable for frequent on-off   cycling
• small form factor for improved design flexibility
• digital control with 100% dimming capability
• vivid saturated colors without filters
• dynamic color control
• wide range of operating temperature-40 to 85°C
• stylish and slim appearance

Seamless transition
• fits in to existing light fixtures
• retrofitable

People Friendly
• no flicker; no glare
• gentle on the eyes
• can be used in heat-sensitive areas, near
  people,   and tight spaces where conventional   lighting can be dangerous and potentially
  damaging

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While LEDs may be more expensive than incandescent lights up front, because they're built around advanced semiconductor material, their lower cost in the long run can make them a better buy.

The main drivers for conversion to LEDs are higher efficiency, long life, reduced maintenance, and increased and superior visibility, making LEDs a more cost-effective lighting option for wide range of situations.

Offices Banks
Hotel Boutique
Street Lights Supermarket
Warehouse Basketball Court
LED Display Outdoor LED Display Indoor
LED Applications
Why LED?
What are LED?

Human activities are now adding about 7 billion metric tons of carbon into the atmosphere every year.

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The International Energy Agency estimates that the world will need to invest $16 trillion over the next three decades to maintain and expand energy supply.

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Mercury from one fluorescent lamp can pollute 22,700 liters of water beyond safe level for drinking.

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Since the beginning of the Industrial Revolution, carbon dioxide (a green house gas linked to climate change) in the atmosphere has increased by 35%.

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