David Shiller

  A recent article, Guidelines for Converting LED to LED: What Turnkey Lighting Contractors Need to Know, by George McIntyre, addresses the emerging need for second-generation LED retrofits in commercial and industrial buildings. As many first-generation LED systems installed between 2015 and 2020 begin to show signs of decline, lighting contractors should approach LED-to-LED conversions [...]

  Osteo-odonto-keratoprosthesis (OOKP), commonly referred to as “tooth-in-eye” surgery, is a remarkable and complex surgical procedure designed to restore vision in patients who are blind due to severe corneal damage, particularly when all other treatments have failed. Developed over 60 years ago by Italian ophthalmic surgeon Benedetto Strampelli, OOKP is now performed in select centers [...]

  CANADA LIGHT EXPO 2025 Dates:  November 12-13, 2025 Location: International Centre, Toronto, Canada Focuses of the show include: Architectural Lighting Landscape Lighting Smart Lighting Energy Efficient | Sustainable Lighting Human Centric Lighting High End Decorative Lighting Horticulture Lighting Healthcare Lighting Over 75 exhibitors and conference educational sessions. One highlight will be Keynote Speaker Douglas Steel [...]

T1L (10BASE-T1L) Ethernet technology has significant potential to accellerate building automation, by enabling the reuse of existing wiring to upgrade network infrastructure without costly running of new wiring. Building management systems (BMS) can been run on T1L and this can have implications for lighting systems. T1L Ethernet is a long-distance networking solution that leverages a [...]

  Here is my latest article published in the May issue of LD+A Magazine: Al Jamea-tus-Saifiyah University’s Nairobi, Kenya campus stands as a testament to the seamless integration of historical inspiration and contemporary design. Drawing from the rich architectural heritage of the 10th-century Fatimid era, the campus design incorporates verdant gardens and tranquil spaces that [...]

The Crestron SolarSync Outdoor Daylight and Color Temperature Sensor (GLS-LCCT) enables the ability to regulate indoor lighting to match the intensity and color temperature of actual daylight outdoors. A single SolarSync sensor installed on a building’s rooftop measures the exact correlated color temperature (CCT) and illuminance (lux) of the natural daylight, and reports it to [...]

A decade after the widespread shift from fluorescent and HID lighting to LEDs, early adopters are now facing the need to replace their first-generation LED fixtures. Traditionally, utility rebate programs have not supported “LED-to-LED” upgrades, focusing instead on the initial move away from legacy lighting. However, as LED technology and energy efficiency standards have advanced, [...]

In March 2025, the National Electrical Manufacturers Association (NEMA) published the ANSI/NEMA C137.9-2025 standard, titled “Networked Lighting Control Systems Configuration Report.” This new standard was developed through the efforts of industry leaders, including the DesignLights Consortium’s (DLC) Levin Nock and working group co-chair Jason Jeunnette, with the goal of streamlining the configuration and verification process [...]

  Chinese manufacturer, EXC Technology, claims to have surpassed the 250 lumens per watt (lm/W) efficiency barrier—a significant milestone in the pursuit of more energy-efficient outdoor lighting. The company, based in Shenzhen, unveiled its MYS4C/MLS6C module, reporting a luminous efficacy of 250.5 lm/W. EXC attributes this high efficiency to a combination of advanced optical design, [...]