In article ,
wrote:
On Thursday, 22 March 2018 10:14:17 UTC, Dave Plowman (News) wrote:
In article ,
tabbypurr wrote:

LPS/HPS street light fittings were designed to give wide spread, it
reduces the number of poles thus costs.

I gather HPS do now come in white too, I'm not really familiar with
those though.

There are more modern alternatives to HPS. Still a discharge type, but
more akin to film etc lighting.

I presume you mean HID.

Nothing hits the efficiency of LPS yet, but its pure yellow light is
hardly ideal.


Very true - and it's extremely narrow band light. Not ideal for making
things stand out from a background.

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*When cheese gets its picture taken, what does it say? *

Dave Plowman London SW
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