measurement of colour temperature

Forums General Discussion New street lights fitted !! measurement of colour temperature

Robin Leadbeater

Hi Nick,

Yes I understand the concept of colour temperature. I was looking for a quantitative measurement method. I found these spectra of various LED lamps with their rated colour temperature.

It looks like a measurement of the ratio of flux at 450nm and 600nm would give a good indication. I might knock up a simple portable spectrograph and take a few measurements