Download the specs here:
http://www.lutron.com/pdfspecs/366-580.pdf
On page 10, it explains that the 3500/4500 series can be programmed using the Grafik Eye Liaison software. Everything else is the same, meaning it can be retrofitted in place of a 3100/4100 unit.
http://www.lutron.com/pdfspecs/366-580.pdf
On page 10, it explains that the 3500/4500 series can be programmed using the Grafik Eye Liaison software. Everything else is the same, meaning it can be retrofitted in place of a 3100/4100 unit.