radiant Wave Switch by Legrand. Image: Legrand. Legrand now offers touchless Wave Switches to reduce the spread of germs. Wave Switches allow users to turn lights (or small motors) on and off with a simple wave of their hand. Wave Switches install easily in place of an existing switch to offer clean and convenient control [...]

In October 2022, the Mexican government passed a law ending seasonal clock changes that the Mexicans call “Summer Time” and the U.S. calls “Daylight Savings Time.” This March, most of Mexico did not ‘Spring forward,’ and are now in a permanent Standard Time. Similar legislation has been passed by the U.S. Senate, but has not [...]

Researchers at the University of Buffalo have published a study demonstrating that light therapy reduces heart disease in mice. If these results hold true in human trials, this could be an extremely important finding. Heart disease is the #1 cause of death in the U.S. One in five Americans dies of heart disease. A simple, [...]

Scandinavian countries have greater acceptance of circadian light therapy for psychological disorders. A hospital in Norway, Valen Hospital, has incorporated circadian light therapy into the emergency treatment of bipolar patients with positive results. Chromaviso is a Danish manufacturer of circadian lighting and light therapy luminaires. The Valen Hospital results have been peer-reviewed and published in [...]

New research from the University of Zaragoza in Spain quantifies how the aging eye restricts the amount of circadian light reaching the retina based on photopic illuminance reaching the corneal plane and considering the optical density of an aging crystalline lens. As the researchers state: “As a result of the described behavior, retinal illuminance may [...]

Dr. Shelly James, Founder of Age of Light Innovations Group, is hosting a webinar, Innovators in Residential Healthcare: Circadian Lighting Principles & Practice, to share best practices in circadian lighting for residential healthcare facilities. Current research suggests that lighting that actively supports a robust day-night (or ‘circadian’) cycle in older people with dementia can significantly [...]

The XL-500 Meter by NanoLambda is an ultra-compact, wearable, wireless battery-operated Spectral Power Distribution or Spectroradiometer (SPD) measurement tool. It uses Bluetooth to upload data and has an internal memory to store over 8,000 measurements on a single battery charge. It captures 340-1,010 nanometer wavelengths in a single reading. The device is groundbreaking in its small [...]

Kudos to Al Uszynski of inside.lighting for breaking this story about the Canadian government’s proposal to ban the sale of most mercury-containing lamps. Fluorescent lamp bans are already occurring in California and Vermont, and are under consideration in other US states. The Canadian proposal goes significantly further, to ban most HID lamps. It’s noteworthy that [...]

Tony Esposito and Kevin Houser published a new study in Scientific Reports demonstrating that CCT is not suitable for predicting the biological potency of light. The experiments utilized a 5-channel LED lighting system to show that significant variation in CS and EML/mEDI exists at any fixed value of CCT and photopic illuminance. For many years, [...]