Can recessed light fixtures be installed with the UpSide Deck Ceiling system? How are they sealed?

Yes, recessed lights can be installed. We recommend following the installation instructions of the individual products you are installing along with the Ceiling Fan/Lighting/Speaker installation guide https://www.colorguardrailing.com/wp-content/uploads/UPSIDE-FAN-INSTR.pdf. You will need to use an outdoor rated sealant/caulk to seal around the fixture to prevent water from getting in.