Just warming up

Lights at the port of Kawaihae, Hawaii

I drive past the port facility in Kawaihae all the time. Sometimes, in the early morning, I’m there when a second bank of lights are turned on. These lights start out red, but quickly warm up to their normal yellow.

This is a feature of low-pressure sodium lights, which I assumed these are. However, the manufacturer stopped making those lamps five years ago, so I’m not sure. Not that it would be unusual for Hawaii to several years behind the times!

Lights at the port of Kawaihae, Hawaii

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