If they’d just used amber LEDs similar to the sodium vapour lights like I told them to [note 1], this wouldn’t be happening. 

Note 1: Joke

On Tue, Dec 6, 2022 at 09:49 Gilbert Detillieux <Gilbert.Detillieux@umanitoba.ca> wrote:
What do swollen caps and purple street lights have in common?...
Volume!  (Or volume discounts, and convoluted supply chains.)

https://www.businessinsider.com/led-city-streetlights-turning-purple-broken-tech-danger-2022-11

--
Gilbert Detillieux          E-mail: Gilbert.Detillieux@umanitoba.ca
Computer Science            Web:    http://www.cs.umanitoba.ca/~gedetil/
University of Manitoba      Phone:  204-474-8161
Winnipeg MB CANADA  R3T 2N2
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