GE LED City: A Brief Introduction to LEDs

    The future of lighting is spelled LED. Watch the brief video and learn more about the many benefits of GE LED technology including energy-cost savings of up to 90%, long-lasting performance, and design and construction that is free from mercury, lead and glass.

What is an LED?

A light-emitting diode, or LED, is a compound semiconductor device that converts electricity into light. One of more LEDs combined with a driver, housing and other components create a complete LED system.

LED CHIP LED PACKAGE LED SYSTEM
a layered
semiconductor light
source
LED chip + lead
wires and an
epoxy shell
multiple LED packages +
supporting electrical,
thermal, optical, and
mechanical components


What makes a robust LED system?

There are four main design factors that determine LED system performance.

Optical Design Mechanical and Thermal Design Electrical Design

  • OPTICAL DESIGN
    LEDs are a directional light source, meaning they emit light in a single direction. Through carefully designed reflectors and lenses, light is directed only where it is needed, minimizing wasted light and energy.
  • MECHANICAL DESIGN
    Because LEDs last for years, the materials and construction of an LED system are critical for performance. Careful mechanical engineering protects the LED system from corrosion and humidity to ensure long service life.
  • THERMAL DESIGN
    Excess heat causes reduced life and color shift in LEDs. With effective thermal management, heat is dissipated, thereby improving LED performance.
  • ELECTRICAL DESIGN
    Electrical design determines the LED lifespan, light output and color control of the LED system. Precise engineering ensures the right amount of electricity is delivered to the LED chip, enabling consistent, long-lasting LED system performance.


What are the benefits of LEDs?

LEDs offer a number of advantages over conventional light sources. LEDs...


...contain no mercury, lead, or glass
...offer significant energy savings, up to 90% compared to incandescent in traffic signals
...last for up to 50,000 hours
...are highly resistant to shock and vibration
...have excellent cold weather performance
...are dimmable
...have a quick turn-on time


How can LEDs impact us?

Reducing greenhouse gas emissions with 20% (or even with 30%, if the conditions are right) compared to 1990; gathering 20% more energy from renewables; and increase energy-efficiency in the EU with 20%. These are the main goals of the European Union's Europe 2020 program, regarding the topic of climate change and energy sustainability.

Ecomagination is GE's commitment to build innovative soulitons for today's environmental challenges while driving economic growth.

By switching to GE's LED products is also one of GE Lighting's possible solutions regarding this matter. These applications not only reduce your carbon emission significantly, but also help you to spare energy and material: LED lighting elements use 70% less energy than a „normal” lightbulb.


Celebrating 50 Years of LED

Celebrating 50 Years of LED Innovation

When GE scientist Nick Holonyak turned on the first practical LED in October 1962, he ignited a lighting revolution.

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Glossary of Lighting Terms

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