Craig DiLouie

Lighting Columnist

Craig DiLouie is a journalist and educator specializing in the lighting industry. Learn more at and​

Articles by Craig DiLouie

May 2014
The U.S. Department of Energy (DOE) recently issued three reports that provide a snapshot of several light-emitting diode (LED) lighting markets and estimate potential energy savings for full adoption.
April 2014
At the Greenbuild conference in November 2013, the U.S. Green Building Council (USGBC) released the fourth generation of the Leadership in Energy and Environmental Design (LEED) green building rating system. LEED v4 represents a major update, including notable changes affecting lighting design and selection.
  • Manufacturers are focusing on developing decorative, sculptural OLED creations, such as Osram Sylvania's Rollercoaster luminaire.
April 2014
The organic light-emitting diode (OLED) is one of the lighting industry’s most exciting technologies. It offers extraordinary energy-saving potential, while enabling unique user experiences. However, its development is about seven years behind its popular cousin, the LED, and significant technical advances must occur before broader adoption is possible.
 The promise of OLED
March 2014
ASHRAE/IES Standard 90.1 provides states and other jurisdictions a model commercial building energy code. The Department of Energy recognizes the 2010 version as the national energy reference standard, and the International Energy Conservation Code recognizes 90.1 as an alternate compliance standard.
February 2014
In late 2012, the California Energy Commission (CEC) published a voluntary specification recognizing quality light-emitting diode (LED) lamps intended to replace screwbase incandescent lamps in luminaires. Called the Quality LED Lamp Specification (QLS), it covers a range of omnidirectional and directional (spot and flood) lamps.
January 2014
On Jan. 1, 2014, the next phase of incandescent lamp regulations in the Energy Independence and Security Act of 2007 went into effect. This phase prohibits the manufacture and import of 40–60-watt (W) incandescent, general-service lamps that do not meet certain energy-efficiency criteria. The result is elimination. READ MORE
December 2013
As the LED revolution continues to proliferate with new lighting solutions that compete with conventional lighting, some novel technologies haven’t gotten as much attention. For example, the organic LED (OLED) is emerging as a potential area light source, while light-emitting plasma continues to develop for high-intensity applications.
November 2013
daylight harvesting control systems have become a common feature in green buildings, and with ASHRAE/IES 90.1 2010 now the baseline energy design standard, it also is expected to become a staple in mainstream construction. 
October 2013
ASHRAE/IES 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings, was developed as a model commercial building energy code that jurisdictions can adopt in whole or in part. It is updated every three years; as of the time of writing, the 2013 version was expected to be published this month.