Street lamps/lights colors question
Posted: 18 Nov 2018 03:02
You know, driving all over Europe and Russia, I am seeing different type of light coloring of street lamps depending on location. So I know yellowish-amber is high pressure sodium, orange is low pressure sodium but what about other lamps? I noticed some have bluish/cool white color so, it could be mercury vapor? Or neutral white as halogen/incandescent lamp? From where I live, it's mostly HPS (high pressure sodium) although some LEDs are making appearances around my area. Oh, there's metal halide as well. So, what are these colors I am seeing around Promods? Thanks!