It says in that quote that it has a refractor...

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The Altra can come with a refractor bowl, and I have seen some with refractor bowls in West Sussex, but Hampshire specify the more cut-off version as shown on the Urbis website.

West Sussex Altra with refractor bowl. Hampshire Altra with plain bowl and deep cut off reflector.

I forgot the Altra had a cutoff bowl... I remember now, because they remind me a bit of Phillips MI36's crossed a bit with a geared MA90!

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In the Netherlands i have seen only the ones with the refractor bowl.
http://www.santaarnpaal.net/coppermine/ ... m=68&pos=6

There is also now LED versions of the Aresa. Looks much better than such shovels on a stick like the WRTL Stela.
http://www.schreder.com/54-1-31-619/product/detail.aspx

So the nominal light output will last for 60,000 hours. An average year has 8760 hours, so the lantern will last for 6.84 years before needing a new LED unit if the lantern needs to operate at full brightness.

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8760 hours is on 24/7, I think for streetlighting a figure of around 3000 hours per annum is quoted as the running time, so that would give 19.97 years life, so call it 20 which is a round number for marketing purposes....

Approximately on the 18th August 2029 is when the lamp will fail, within the market purposes stated.

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From streetlighting to radio, dance through the night whilst the streetlights are glowing outside.

D'OH! I didn't calculate each day as having 12 hours of darkness (given seasonal variation)

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20 years lifespan isn't bad! I heard the WRTL Stela was only likely to last for 6 years before needing replacement! If that's the case then the Aresa should kick the Stela's butt! I wonder if the actual lighting levels are better with the Aresa than with the very poor Stela though?