solar system 1. Easy use and installation 2. DC and AC output 3. High quality solar systemsolar AC systemFor home application, whole set(solar panels, battery, inverter, controller), output form 400W-8KW, easy installation and use.ModelLYDS-20WLYDS-30WLYDS-50WSolar panelRated power20W30W50WOperation voltage17.5V17.5V17.5VOperation current1.15A1.72A2.86AControllerSolar charger controller12V/10A12V ...