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My old company ( I was a director ) designed , engineered, installed and maintained electrical and lighting to approximately 750,000 sqm of retail floor space in commercial shopping centres and buildings over 25 years across Australia
We started with incandescent and fluorescent lighting late 80’s and early 90’s then came compact fluorescents , halogens and metal halide lighting in early 2000’s and by 2012 we were fully LED specified
The energy saving and cost saving in watts per sqm was an absolute quantum leap from the early days to just recently when I retired
LED is the way of the future but only in the hands of competent, experienced lighting engineers and designers
Most installations these days I’m finding are way over specified and therefore waisting lumens ( not so much cost ) in the wrong areas ( hence your overlit supermarkets etc... )
They are governed by the BCA and Australian Standards in regards to design but tend to be overzealous to cover themselves and their companies
My 2 cents ........
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