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originally posted by: andy06shake
a reply to: Brigadier
To me calling them blacklights implies the use of ultraviolet light which don't really produce much visibility.
Obviously those lights use a combination of LED in there construction.
Saves energy far as i can establish compared to the old orange glow types that are now being replaced with the same to something similar in the video.
originally posted by: andy06shake
a reply to: oikos
UV light does indeed make some surfaces glow but its not particularly detectable to the human eye given the range of the electromagnetic spectrum it occupies.
Far as i can establish the reason for using the newer LED type lights rather than the older sodium streetlights and industrial lights is down to saving energy.
So nothing nefarious just progress.
Part of the reason they use the white lights instead of putting orange ones up is because you can see colours more accurately, so theres a safety element (being able to tell red and green apart is hard under the narrow-spectrum sodium light for example)
Though the lights may be harmless, Duke Energy has told its crews to be on the lookout and asks that anyone who sees a purple light report it to the company here. From there, they will work to quickly repair or replace the lights.
So if you see a purple haze coming from some streetlights on your next late-night drive, there's no need to worry. To put it simply: "There's no safety issues with the lights and they continue to work," Duke Energy said. "They are just purple."
originally posted by: andy06shake
a reply to: Brigadier
To me calling them blacklights implies the use of ultraviolet light which don't really produce much visibility.
Obviously those lights use a combination of LED in there construction.
Saves energy far as i can establish compared to the old orange glow types that are now being replaced with the same to something similar in the video.