LED 101

LED 101 A quick guide to LEDS and why they matter to you What is an LED? A light-emitting diode, or LED, is a compound semiconductor device that converts electricity into light. One or 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 LED chip + lead wires and an multiple LED packages + supporting electrical, thermal, optical, and mechanical components epoxy shell source What makes a robust LED system? There are four main design factors that determine LED system performance. 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 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 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, Tong-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 ENVIRONMENT DURABILITY .are highly resistant to shock and vibration ..have excellent cold weather performance CONTROL .are dimmable .have a quick turn-on time How can LEDS impact us? By the year 2030, the US Department of Energy estimates LED lighting could save approximately 190 TERRAWATT- HOURS OF ELECTRICITY per year, which is equivalent to: and at today's prices enough electricity to power million 95 $15 billion the annual output of IN SAVINGS HOMES 24 LARGE POWER PLANTS * (1000 MW) GE 16) Lighting Solutions