Oct 052010
 

I recieved an email from Hanley Wood University. They are offering five online courses related to lighting design. The courses are free thanks to their sponsors. I don’t know how good they are but they are timely…

Daylight Harvesting or Controlling Electric Light in Response to Daylight
Sponsored by: Leviton Lighting Management Systems

  • Define what daylight harvesting is and several benefits associated with this strategy
  • List daylight harvesting design control considerations and related components
  • Determine the best applications to take advantage of daylight harvesting controls

Introduction to Tubular Daylighting Devices
Sponsored by: Solatube

  • Benefits of daylighting in multiple building environments
  • Differentiate between different daylighting strategies and identify advantages and disadvantages of different strategies
  • Tubular daylighting devices are different from other daylighting product categories

LED Lighting Education for Specifiers
Sponsored by: Acuity Brands

  • Technology that makes LEDs so dynamic and powerful
  • Compare and contrast LED technology to alternative, more traditional light sources
  • Appropriate applications for LED lighting
  • Projected future of LEDs in architectural and lighting design

Lighting for Learning: Best Practices for Classroom Lighting
Sponsored by: Peerless

  • Learning environment is improved upon by changing lighting options
  • Describe at least two control settings and how they impact light quantity and quality in a school setting
  • How and why the Collaborative for High Performance Schools seeks to improve interior lighting
  • Describe how lighting can affect the economics of a school budget

What is the Big Deal with LED Lighting? How can LED Lighting Improve Projects I am Working on Today?
Sponsored by: CREE Lighting

  • History, present and future of LED technology
  • Describe at least three benefits of using LED technology, particularly related to energy savings, and see examples of LEDs in several architectural applications
  • Useful tips on how to prevent potential pitfalls in your projects, by learning more about how to properly specify LED fixtures
Feb 272009
 

Recently a customer asked about dimming ballasts. We handle the Sylvania Quicktronic Powersense ballast. This is the newest dimming ballasts in Sylvania’s line. It features two modes of dimming control: Line Voltage and 0-10VDC control. Line Voltage is common with wall controllers. The 0-10VDC control works well with control systems.

The light fixture in our office has a Quicktronic dimming ballast. Sylvania doesn’t sell a 0-10VDC controller but I had no trouble hooking up a 25-cent potentiometer from Radio Shack. The lighting can be smoothly dimmed all the way from 100% down to 5% for maximum savings. The best energy savings occur when you integrate dimming with a lighting control system. Additional savings include:

  • Daylighting where electric lights are dimmed or extinguished in response to natural light.
  • Small zone motion and/or vacancy detection where sensors see all occupants and extinguish lights when the space is unoccupied.
  • Large zone motion and/or vacancy detection where sensors are combined with scheduling to provide night security and safety.
  • User dimming where individual occupants can control lights.
  • Tuning maximum light levels to be set to limit lighting power.
  • Lights are switched on a fixed or programmed schedule.
  • Adaptation compensation where interior lights are dimmed to ease adaptation of the eye and harvest energy savings at night.
  • Demand management and response where building energy use is monitored and reduced in response to energy cost or grid emergencies.

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