Craig DiLouie

Commercial building energy codes and lighting control best practices promote light reduction or shutoff in response to occupancy (occupancy or vacancy sensing) or daylight (light sensing). Luminaire-level lighting control...

The COVID-19 pandemic generated interest in applying germicidal ultraviolet (GUV) lamps in buildings such as healthcare facilities. Traditionally used in applications such as water treatment, industrial processes and...

Millions of exit signs installed in the United States may not produce sufficient brightness to be visible during emergency conditions. This is a key conclusion of an exit sign field study published in January 2022 and...

Skyglow, light trespass, glare and color remain issues in outdoor lighting design. For the first time, the DesignLights Consortium (DLC) addressed them in technical requirements released December 2021. LUNA version 1.0...

“Ban the bulb” is back. In April 2022, the U.S. Department of Energy (DOE) issued two final rules regulating general-service incandescent lamps, effective 75 days after publication in the Federal Register, though a degree of...

In about three-fourths of the United States, utilities or energy-efficiency organizations offer a commercial lighting rebate program, according to rebate fulfillment firm BriteSwitch, which recently compiled its 2022 North...

Sometimes, the customer isn’t exactly sure what they want. Field-adjustable (also called field-selectable) lamps and luminaires reduce guesswork for electrical contractors by allowing lighting performance to be dialed in...

Lighting control devices and systems enable the right amount and color of light to be produced where and when it is needed, while potentially producing useful operating data. Combinations of inputs (manual, time, occupancy...

The essence of lighting design is layering, or introducing general, task and accent lighting to a space. In a conference room, we might have downlights for general, a pendant over the table for task, wall washers and the...

Commercial buildings in the United States are getting larger and increasingly include energy-saving features such as LED lighting, according to the U.S. Department of Energy’s 2018 Commercial Buildings Energy Consumption...

In March 2021, the Illuminating Engineering Society published, “Beyond 2030: What Do You See?” https://bit.ly/3zrHZkg. In it, industry experts imagine the state of the lighting industry in 2030 and beyond, challenges it faces...

Per a change in the 2020 National Electrical Code effective Jan. 1, 2022, 0–10V (Class 2) dimming wire insulation colors have changed to eliminate use of any reserved colors, notably gray. The National Electrical...