Thanks for the link. Looks like I have some reading to do. I just pulled out the installation ticket. We had it installed along with the Intelliflo and actuators in April 2020. On the ticket it's listed as "522355 - Easytouch Lite PSL4 Sys W/Screen Logic" It appears the J23 jumper has been cut out of mine. They didn't connect my old pool lights to the new controller. I eventually like to have LED replacements installed.