I recently ran into a problem when installing a second generation switch on a circuit with Christmas lights and heat tape.
After awhile, the relay would become stuck and I was no longer able to control the switch manually or remotely. After further research I found that these switches could only do 600W maximum. Seems low compared to other switches that offer a 1200W maximum.
I could foresee this being a problem with exhaust fans or other high amp loads like the circuit I had.
I hope to see the next switches contain a higher load rating. What do others think?
(Edit) I should note that these load ratings and my setup was with all the tabs intact.