Sunsei SE-4000 65-Watt 16.5-Volt Solar Panel Generator #25038 The SE-4000 Sunsei solar 65-Watt 16.5-Volt charger is a powerful solar panel, providing reliable, renewable energy as an alternative to noisy and expensive diesel, propane and gas generators. It replaces the daily power consumption of 12-Volt lighting systems and appliances. The weatherproof solar charger provides immediate trickle-charge when exposed to daylight, even on cloudy days. It is ideal for use in your boat, cabin or RV and it can also be used for charging small backup power systems; this unit charges multiple batteries at once and works with your vehicle or cabin's electrical system. Its "Plug-n-Play" features allows connection of multiple panels in seconds without tools or rewiring and its blinking indicator shows when the panel is charging. This weatherproof solar panel features an aerodynamic design specially engineered to reduce drag and withstand high-vibration in mobile applications. It comes with connector wires and 4-mounting brackets. This solar panel requires a charge controller (Sunsei model No.CC10000, CC25000 or CC2000D) which is sold separately. It is covered by a 20-year warranty. This is the perfect size panel as the core of a mini home or mobile solar system! About as heavy as a couple of laptops, this panel puts out enough power to charge larger batteries or run small DC appliances and AC inverters. More information here.