Tune and Dim your lights right on the control hub to set your lighting just right. Use the pair button to connect to wifi or pair with a new switch. The hub will also remember the settings if it loses power. Power hub for up to 400" of light panels (ex: a panel for an 18" cabinet will use 18" in width, a corner panel will use 36"). A power hub will be required for the light panels and are normally put inside one of the cabinets, then a cord will be run through the bottom of the cabinet into one of the light panels. If, for some reason, the power supply will be more than 12" away from the light panel it's being connected to, additional connector wires will need to be used.