Lighting

 

 

Lighting and controls is a huge, constantly changing, dynamic market. The ELECTRICAL CONTRACTOR lighting editorial listed below keeps current on technological innovations from LEDs, controls, and design to innovations in efficiency by traditional lighting formats. 

Organic LED (OLED) is a solid-state lighting technology with strong potential for architectural lighting. The LED is a compact, directional point source. Shielding prevents glare, while heat sinking removes internal heat. In contrast, OLED is a flat (less than 1/8-inch thick), diffuse area source.

Human perception of colors in their environment is dependent on light. As electric light sources have varying spectral emissions, the electrical industry relies on metrics to report, evaluate and predict how colors will appear under different light sources.

According to the U.S. Department of Energy (DOE), more than 360 million troffers (named for a cross between trough and coffer) provide general lighting in commercial building interiors.

Over the last seven years, the LED Streetlight Replacement Program in Los Angeles has swapped more than 80 percent of the city’s 215,000 streetlight fixtures with LED units. To date, energy usage has lowered by 63 percent, saving the city approximately $9 million per year in energy costs.

More on Lighting

 
Spotlight on Dimming

Energy codes, green building projects, user interest in flexibility and other market forces are driving demand for lighting solutions, including high-intensity discharge (HID) lighting systems, such as high-pressure sodium and metal halide.


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Smart Lighting From 9 to 5: Office Lighting

Doing more for less is a workplace mantra these days. It applies to the work force and the energy usage of the building that houses it. Smart lighting strategies are playing a central and growing role in this confluence of productivity.


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LED Longevity

The biggest selling point of the light-emitting diode (LED) lamp is its already legendary longevity, which far surpasses the life expectancy of incandescent, halogen or fluorescent light sources.


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Efficient Lighting Technologies

Lighting currently represents about 17.5 percent of all global electricity consumption, according to the EnergyWatch newsletter from Attardi Marketing. The United States alone accounts for approximately 20 percent of this amount at an annual cost of more than $40 billion.


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Editors' Pick
Tricky Business: Rare-earth Materials Shortage

If the nation’s rising unemployment, flagging construction, and global debt crisis didn’t give electrical contractors enough cause for concern, they have recently been grappling with another business woe—significant price increases on some of the market’s most popular energy-efficient fluorescent la


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The Control Narrative

Driven by commercial building energy codes, green building projects and owner demands for flexibility and lighting energy savings, lighting controls increasingly are being specified and specified systems are becoming increasingly sophisticated.


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Harness the Sun

Employing daylight to reduce electricity can be an attractive energy opportunity for building owners and operators, with lighting accounting for nearly 40 percent of all energy consumed in modern buildings.


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