Showing posts with label Light. Show all posts
Showing posts with label Light. Show all posts

Sunday, March 22, 2015

Dimming lighting systems


ISM auditorija 2


Dimmers:

 Dimming lighting systems allow you to control the amount of light and save energy. Dimmers are available for fluorescent and incandescent systems.

Daylight dimmers are special sensors that automatically dim room lights based on the amount of free and natural daylight available.

Dimmers are commonly used in conference rooms, classrooms, restaurants, and libraries.

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Energy-Efficient Fluorescent Lighting Systems

Look for this logo when considering your new r...

 Energy-Efficient Fluorescent Lighting Systems:

 These systems, using T8 (1" in diameter) and T5 (5/8" in diameter) lamps, offer improved efficiency, higher intensity, and potentially longer life due to reduced degradation in light output over time. T8 and T5 lighting systems are constantly increasing in flexibility and are now applicable to a variety of task and accent lighting applications, as well as general lighting of larger spaces.

To learn more about T8 and T5 lamps visit:
  • ENERGY STAR Qualified Products

  • National Lighting Product Information Program: "Lighting Answers: T8 Fluorescent Lamps" Fact Sheet 

  • National Lighting Product Information Program: Lighting Answers: T5 Fluorescent Systems.

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What HID technologies are most efficient for my facility?

English: Spectrum of a metal halide lamp
English: Spectrum of a metal halide lamp
 What HID technologies are most efficient for my facility?

For high-ceiling and exterior applications, specify metal halide or high-pressure sodium vapor lamps. In areas you wish to highlight, or accent particular merchandise, use small metal halide spotlights. To learn about HID lighting systems:
  • National Lighting Product Information Program Lighting Answers: Mid-Wattage Metal Halide Lamps

  • National Lighting Product Information Program: "HID Accent Lighting Systems" Report 
In some cases, you may be able to reduce the wattage of your already installed HID lamps by purchasing and installing specially designed reduced wattage metal halide lamps. For example, a special 360-watt metal halide can replace a 400-watt metal halide. Consult your lighting professional for more information.

Project Suggestion

Consult your lighting professional about specifying more energy efficient T5 lighting systems instead of HID lighting systems.


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Compact Fluorescent Lamps

Modern fluorescent light bulb with E27 thread ...
Image via Wikipedia

Compact Fluorescent Lamps (CFLs)

CFLs are fluorescent lamps that have been specifically made in a compact form to replace incandescent lamps in traditional screw-in fixtures. These energy-efficient lamps come in a variety of styles and sizes and are suitable for a variety of applications. ENERGY STAR qualified CFLs use 75% less energy than a standard incandescent bulb and last up to 10 times longer. Replacing a 100-watt incandescent with a 32-watt CFL can save approximately $30 in energy costs over the life of the bulb.
The long life of CFLs makes them ideal to use in hard-to-reach places due to their reduced need to be replaced as often. In addition, CFLs are cool to the touch, making them safer than incandescent and halogen lamps. To learn more about CFLs visit:
  • ENERGY STAR Qualified Compact Fluorescent Light Bulbs
  • DOE EERE Consumer's Guide: Compact Fluorescent Lamps
  • National Lighting Product Information Program's Screwbase Compact Fluorescent Lamp Products Report
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Thursday, March 5, 2015

Daylight Sensor Photocells

English: Coke christmas advertising campaign t...
English: Coke christmas advertising campaign truck in Middelfart, Denmark. (Photo credit: Wikipedia)
















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Electronic Signs Fit Many Types of Retail Environments

Research indicates that electronic shows are ideally suitable for many sectors:


 
Daylight Sensor (Photocells): 

 A common inefficiency of exterior lighting systems is a tendency to "dayburn."

 This is when lights are on during the day, wasting energy and money.

This problem can be prevented by installing light-sensitive controls that turn the lights on and off automatically based on daylight, thus producing convenient energy savings.

Timers can be used, but do not react to changing daylight conditions.

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