Purple Lights at Intersections - What are they? Why are they?

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Sped Xing

Sped Xing

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Jun 4, 2019
What are these purple lights for? It's not some weird sodium lamp; they're very much purple and only at some intersections. There is one in Houston at Hollister and 8. There is one in Bastrop at Electric Avenue and 21.

Please, please, give me what's in the bag explain these fucking lights.
 
I've seen the purple lights in my town. Not at intersections but along main street. Two of them within forty or so feet of one another.
 
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the ones in this article were blue but i assume it's the same principle
 
Overly Serious said:
It's terrifying to me how normal it is to run red lights in the USA. Everytime I'm over there I see it happen seemingly routinely.

I mean, on the one hand, I like how fuck authority the yanks can be. On the other hand, maybe this isn't the time you know?
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I've always despised driving because it's essentially gambling with your life.
 
Overly Serious said:
It's terrifying to me how normal it is to run red lights in the USA. Everytime I'm over there I see it happen seemingly routinely.

I mean, on the one hand, I like how fuck authority the yanks can be. On the other hand, maybe this isn't the time you know?
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Traffic laws are among the only laws that aren't based in morality which I ger angry when people break.
Just A Butt said:
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the ones in this article were blue but i assume it's the same principle
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That would make more sense if they were on more intersections. They're just here and there; very odd.

I'm not sure what they're attached to. They shine at the road, giving everything a nightclub look.
 
I looked into this the other day since there are also purple streetlights in my city. It's due to many of the new LED lights being cheap defective, causing the green ones to short out, leaving only blue and red.
 
Sped Xing said:
Are you saying white LEDs are actually just a green, a blue, and a red LED?
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You're right, it's not a RGB combination like in televisions. My mistake. I found a quote that explains why white can turn to blue/purple:
Most "white" LEDs use a monochromatic blue source (not UV), which is then fluoresced to the lower frequencies with phosphor. Good phosphor is expensive, and more fluorescing hurts efficiency. Consequently, cheap LED sources tend to be blue and have a poor CRI.
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So what I'm gathering is that this is just a result of cost-cutting by the company that made the LEDs.

(Edited for a less technically-worded explanation I found later)
 
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Exuvia said:
You're right, it's not a RGB combination like in televisions. My mistake. I found a quote that explains why white can turn to blue/purple:
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I wasn't pointing out a mistake. I don't know anything.
 
Sped Xing said:
I wasn't pointing out a mistake. I don't know anything.
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But you're right, I was just assuming white was made by combining RGB and didn't know that there were actual white LEDs.
 
Exuvia said:
But you're right, I was just assuming white was made by combining RGB and didn't know that there were actual white LEDs.
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It's funny because you still think I wasn't genuinely asking for clarification.

Are you suggesting that coconuts migrate?
 
Sped Xing said:
It's funny because you still think I wasn't genuinely asking for clarification.

Are you suggesting that coconuts migrate?
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I know you were asking for clarification. When you asked, it made me reconsider my confidence in my answer, which led me to learn what the actual explanation was.
 
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