WindyNation 400 Watt Monocrystalline Solar Panel Complete Off-Grid RV Boat Kit with LCD P30L PWM Charge Controller + Solar Cable + MC4 Connectors + Mounting Brackets Premium monocrystalline 400 Watt solar charging kit provides up to 400 watts of clean, free, renewable power Designed for RVs, cabins, homes, boats, back-up and remote power use WindyNation P30L PWM Solar Charge Controller has user adjustable settings! LCD Screen shows system amperage, voltage, amp-hours, temperature and DC load draw. See image in photo gallery for all LCD readouts. Kit will provide on average 1600 Watt Hours (Wh) or 135 Amp hours of charge per day (depends on sunlight availability). Can be wired for 12V or 24V battery charging. Complete kit includes: (4pcs) 100 Watt Monocrytalline WindyNation Solar Panels, Premium P30L 30-Amp (user adjustable) LCD Display Solar Charge Controller with Battery Temperature Sensor, 40 feet of UL Listed 12 AWG Solar Cable, all necessary MC4 Connectors, all necessary mounting hardware and Installation Manual.