Is the location controlled by only one switch?
ecobee Switch+ can only be installed in locations where the light is controlled by only one switch.
Do you have at least one neutral wire in your set-up?
Neutral wires are white and come as either a single wire or a pair. Unsure? Please refer to the installation instructions.
What types of loads can I use ecobee Switch+ with?
120V AC 60Hz
150W I.BAL (LED and CFL)