'It's early morning all night long': Halifax residents revolt over LED street lights

'It's early morning all night long': Halifax residents revolt over LED street lights

"Once you bought this system, you're stuck with it and that's at the core of why this is a significant debate right now." - David Benya, IES

Rethinking the Photometric Data File Format

Rethinking the Photometric Data File Format

Thirty years later, our personal computers are one thousand times faster, with one million times the memory capacity and ten million times more data storage capacity. Data is transferred by fiber optic cable and satellite links at gigahertz rates … and we are still using IES LM-63 photometric data files!