For urban lighting, International Dark Sky Association recommends color temperature no more than 3000K with minimum blue light emission since blue light brightens the night sky more than any other color. And some researches show that exposure to blue light harms human health and endangers wildlife.
While choosing the color temperature of a light source, the CRI color rending index, is also another characteristic of light to be considered. CRI is the scala to show how well the light source interprets the real color of an item. 100 is the top score, which means the color is really like under the daylight.
Considering that all these variables above will exist in various projects, using a flexible lighting system is the smartest solution. With lighting automation systems to control lights from anywhere and adapt the lighting level and color temperature to the project and users’ requirements is possible.
