Not sure about this, but you might try interfacing a product from xantech that converts IR to RS 232 ( model IRS232A). That unit might then feed RS 232 commands to the UPB powerline interface that would normally be installed between a PC and the A.C. You would use Xantech IR commands to initiate a corresonding RS 232 string to control the UPB lighting gear. This might be limited by the number of RS 232 commands that the xantech unit can generate and/or the number of ir commands it can accept. I believe one IRS232A can execute a maximum 32 strings based on 32 discrete IR commands.