28 August 2023

Technologies. Eco-friendly light


Scientific studies have shown that high levels of blue light content disrupt the human circadian rhythm at night and adversely affects wildlife, such as birds, insects, and turtles. Across the globe blue light content contributes to the brightening of the night sky.

NightScape Technology will first be available in Lumileds LUXEON 3030 HE Plus and 5050 Square LEDs with a CCT of 1900K and blue light content of just 1.8% in the 400-500 nanometer range of the visible light spectrum. These outdoor proven emitters are widely used around the world for outdoor lighting including streetlights, pedestrian, landscape, and similar applications.

The physical dimensions and optical radiation patterns of the LUXEON 3030 HE Plus and LUXEON 5050 Square LEDs are identical to the existing parts in each portfolio. Any luminaire using either of these products or potentially from other manufacturers can quickly and easily adopt NightScape technology and produce a more environmentally friendly solution.

Wildlife, such as birds, turtles, and even insects, are susceptible to the impacts of artificial light at night on their migration, mating, and nocturnal activities. Outdoor lighting regulations are being rewritten and updated to provide some wildlife protection. Maui County in Hawaii has a new ordinance that took effect on July 1, 2023. This ordinance requires that “All outdoor lighting fixtures, except for neon, must limit short wavelength content to no more than 2 percent of blue light content.” Outdoor fixtures using LEDs with Lumileds NightScape technology will easily fall below the 2% requirement.

The amount of blue light emitted by various light sources is often misunderstood. It is typically measured as the ratio of blue light between 400 and 500 nanometers to the total amount of visible light emitted from the source. The graph at right shows blue light levels for different light sources that are commonly used at night. Incandescent bulbs are more commonly used in residential settings while HPS is used more commercially.


More information about the technology on the manufacturer’s website:

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