What is an LED?

Revolutionary change for the lighting industry.

Many segments of the lighting industry are undergoing revolutionary changes due to recent advancements in LED technology. For example, in 1993 Shuji Nakamura developed the first marketable blue LED using gallium nitride (GaN). When combined with phosphors, GaN LEDs produce white light. After high power LEDs were developed—which could displace a watt of more of power—the stage was set for the development of large-scale LED lighting systems.

Technological advancements in LEDs continue, although some challenges remain. For example, all electronic components generate heat, and all depend on effective heat dissipation technologies to insure proper operation and fully-rated life. At EcoBrite Outdoor, we specialize in the design and manufacturing of high performance, long-life LED lighting systems that meet or exceed both industry standards and LED manufacturers’ recommendations for LED junction temperature(TJ), the most critical measure of LED thermal performance.

Understanding the Difference in LED Types

LEDs were invented decades ago, and as their use has grown, so has the number of different LED types. Below is a picture of LEDs commonly used in electronics devices, automotive products and, most recently, traffic signals. These devices are capable of delivering only a few lumens of light output.

LEDs Commonly Used in Other Applications

However, the LEDs used in quality street light luminaires are significantly different. Commonly referred to as High Power LEDs, these devices deliver over 100 lumens/watt, with versions approaching 150 lumens/watt in laboratory testing.

High Power LEDs Used in Quality Street Light Products