Windy Nation 12 Volt Battery Charger 100 Watt Solar Panel Eco Off-Grid RV Boat Kit with Premium LCD PWM Solar Charge Controller + MC4 Connectors 100 Watt Eco solar charging kit provides up to 100 watts of clean, free, renewable power Designed for RVs, cabins, homes, boats, back-up and remote power use PWM Solar Charge Controller has user adjustable settings! LCD Screen shows system amperage, voltage, amp-hours, temperature, DC load draw, etc. See Image in photo gallery for all LCD Screen readouts. Kit will provide on average 300 Watt Hours (Wh) or 25 Amp hours of charge per day (depends on sunlight availability). Can be wired for 12V battery charging. Eco kit includes: (1) 100 Watt Polycrystalline WindyNation Solar Panel, 30-Amp (user adjustable) LCD Display Solar Charge Controller with Battery Temperature Sensor, MC4 Connectors, and Installation Manual.