Craig DiLouie

Before the LED became a successful illuminator, its first major application was as an indicator, such as in exit signs. However, lumen depreciation is a significant failure mode for LEDs, which raises the question whether...

The electrical contracting community experienced significant economic impacts from the COVID-19 pandemic but is somewhat optimistic about 2021. That is one key finding from the 2020 Commercial/Industrial/Institutional (CII)...

The COVID-19 pandemic is driving interest in broader applications of germicidal ultraviolet (GUV) lamps to disinfect building spaces. The challenge with GUV is that it is harmful to human health as well as viruses and...

Commercial lighting rebates remain a popular, enduring incentive for nonresidential upgrades. The majority of rebates are prescriptive, offering a cash rebate per installed product from a utility or energy-efficiency...

From ensuring that merchandise looks vibrant in a retail store to including proper flesh tones in an office space, color quality is a key specification characteristic for light sources. For electrical contractors...

The installed stock of LED products will reach 5 billion units, or 60% of all installed lighting, by 2025, according to the U.S. Department of Energy (DOE). By 2035, most projected energy savings will come from nonresidential...

In December 2019, President Donald Trump signed H.R.1865—a tax extender bill reviving $35 billion in expired tax provisions—into law. Along with an extension of the Energy-Efficient Homes Tax Credit, these provisions include...

Late last year, ASHRAE, the American Society of Heating, Refrigerating and Air-Conditioning Engineers, published the 2019 version of ASHRAE/ANSI/IES 90.1, “Energy Standard for Buildings Except Low-Rise Residential Buildings,”...

The novel coronavirus pandemic has sparked fresh interest in germicidal ultraviolet lamps (GUV) for disinfection. For some 40 years, GUV have been used to disinfect potable water and wastewater, certain products such as...

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) publishes free design guides for buildings that achieve major energy reductions without compromising quality. The latest guides go even...

Lighting Roundtable: circadian-supportive lighting Lighting systems are designed for vision and visual comfort, but science tells us light can also modulate circadian rhythms. The growing understanding of the relationship...

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recently released a new version of the building automation and control networks (BACnet) building automation system protocol. BACnet...