Lights full load condition on panel → see power drawn on loads
lights full load on panel with 2 mppts → see power drawn
no lights on panel with 2 mppts undervoltage → see if it can recover by turning lights on
Lights full load condition on panel → see power drawn on loads
lights full load on panel with 2 mppts → see power drawn
no lights on panel with 2 mppts undervoltage → see if it can recover by turning lights on