High-Efficiency Lighting

What are LEDs?

High-Efficiency Lighting LEDs, or light-emitting diodes, are semiconductor devices that produce visible light when an electrical current passed through them. LEDs are a type of Solid-State Lighting (SSL), as are organic light-emitting diodes (OLEDs) and light-emitting polymers (LEPs).

How is LED lighting different than other light sources, such as incandescent and CFL?

LED lighting differs from incandescent and compact fluorescent lighting in a couple of ways. When designed well, LED lighting can be more efficient, durable, versatile, and longer-lasting.

LED lighting products use light-emitting diodes to produce light very efficiently. An electrical current passes through semiconductor material, which illuminates the tiny light sources we call LEDs. The heat produced is absorbed into a heat sink.

Common LED colors include amber, red, green, and blue. There is actually no such thing as a “white” LED. To get white light, the kind we use for lighting our homes and offices, different color LEDs are mixed or covered with a phosphor material that converts the color of the light. The phosphor is the yellow material you can see on some LED products. Colored LEDs are widely used as signal lights and indicator lights, like the power button on a computer.

LEDs are now being incorporated into bulbs and fixtures for general lighting applications. LEDs are small and provide unique design opportunities. Some LED bulb solutions may look like familiar light bulbs and some may not, but can better match the performance of traditional light bulbs. Some LED light fixtures may have LEDs built–in as a permanent light source.

LEDs are “directional” light sources, which means they emit light in a specific direction, unlike incandescent and compact fluorescent bulbs, which emit light and heat in all directions. For this reason, LED lighting is able to use light and energy more efficiently in many applications. However, it also means that sophisticated engineering is needed to produce an LED light bulb that shines light all around like an incandescent A-shape bulb.

(Energy Star)

Retrofitting large office spaces with LED lighting can have a large impact on bottom-line energy savings.

The Marriott headquarters replaced 400- to 1,000-watt HID lamps with energy-efficient LED lamps. The company also added lighting control systems and motion sensors.

Overall, Marriott reduced its energy use by 66 percent and now saves more than $120,000 each year in energy and maintenance costs. With these savings, the estimated payback period is only slightly more than two years.

(Amber Forester, Lighting and Energy Solutions Specialist)

We would be happy to come out to your Business Inside and Out and Give you an idea of your savings with a LED Retro Fit Today

Just Pick up the Phone and Call Yesco Concord Nashua at 603-238-6988 or feel free to email us at rnichols@yesco.com

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