DOE documents OLED photometric performance in Caliper report


OLED panels produce soft diffuse light with essentially a Lambertian distribution that is inherently pleasing, but efficacy remains a challenge and elevated ambient temperature can drastically reduce lifetime.


The US Department of Energy (DOE) has released another Caliper report, this time focused on OLED luminaires available on the commercial market. The study documents photometric performance, product design considerations, and lifetime reliability through accelerated testing. The four solid-state lighting (SSL) products tested revealed pleasing optical performance, but energy efficiency, lifetime, reliability and cost remain issues.

Is Your Landscape Lighting Polluting the Environment?


Avoid nuisance lighting and glare that bothers neighbors and interferes with the night sky view.

Many homeowners turn to professional outdoor lighting designers to showcase their trees, homes and yards with nighttime illumination. But a good designer works to light the yard as efficiently as possible while minimizing the effects of glare and light intrusion on the street, neighboring properties and the night sky.