News story on Philadelphia's plans for replacing streetlights with LED.
From the article:
"The Streets deputy commissioner said 4000K LEDs does not make the streets safer per se, but it allows them to recognize faces and colors when using surveillance cameras. With a conventional 2700K high-pressure sodium light or a 3000K LED light they can’t tell the color of the shirt of a suspect in a video, whereas, with a 4000K they can, he explained."
I'm curious about the contention that 3000K LED lights don't show color well. I have these in my house, and they seem to render colors at least as well as incandescent lights, which are much better than high pressure sodium lights. I think people look at the CCT rating and think that 3000K must be similar to HPS lights, which is incorrect.
I emailed the reporter to let her know I enjoyed her article and to point out how the commissioner's statement is in conflict with my experience with 3000K LED lights. Maybe she'll ask the commissioner about this next time around.
Edited by earlyriser, 13 April 2018 - 06:23 AM.