These CCT units offer the color control switch on the light unit component. This feature allows the driver/junction box installation, without worry of choosing the CCT rendering. (Rough-in stage) Once all finishing work is completed, the installation of the light unit simply requires setting the CCT switch to the appropriate rendering desired prior to it being installed. Each unit includes a junction box with driver, a light unit with a CCT selectable switch, pressure fit spring clips and Quick Connect wire connectors for fast and easy installation. This collection is IC and airtight rated. Suitable for wet locations, such as showers or soffits. The maximum number of the 11W fixtures that can be installed with a standard 150W LED dimmer is 13 units. This product is CSA certified in Canada and the US conforms to UL standard 1598 and CSA standard C22.2 NO. 250.0. The wiring compartment accommodates up to (6) 14 gauge insulated conductors to satisfy luminare junction box volume requirementAlthough this product meets all industry certifications and ratings, some municipalities will require the use of a vapor barrier and/or mounting plate. Verify local building codes prior to installation.