Feature:1. Solar Panel: Adopted tempered glass surface, which can prevent weathering and wear, long service life, made of high efficiency monocrystalline silicon, can generate more electricity in full sunlight.2. Battery Protection: The charge controller can prevent battery overcharge, overdischarge, overvoltage, short circuit and reverse current, extend battery life.3. Intelligent Control: Automatic charging during the day, shutdown at night, reduce nighttime consumption, improve daytime efficiency, and do not consume battery power.4. Practical: High temperature resistance and waterproof, can easily cope with outdoor harsh environment, has high charging efficiency, with four suction cups, prevent falling.5. Kit Includes: Package includes 12W monocrystalline solar panel, electric controller, etc., which can be widely used in RVs, motorcycles, ships, tractors, trailers, trucks, lawn mowers.Specification:Item Type: RV Solar PanelMaterIal: Polysilicon and metal and ABS.Protection Class: IP65Solar Panel Power: 12WSolar Panel Working Voltage: 18VSolar Panel Open Circuit Voltage: 21.6VSolar Panel Short Circuit Current: 0.55A (Maximum)Controller System Voltage: 12v or 24v AdaptiveController Working Temperature: -35and60Output Port: Dual USB, DC 5521 Female plugSolar Panel Size: Approx. 280x280x3mm or 11.02x11.02x0.12inFeatures: Integrated Voltage Regulation Module, 5V Dual Usb Regulated OutputApplication:Can be widely used in batteries for motorcycles, boat, tractor, trailer, truck, lawn mower, RV etc. Also be used for gate openers, electric fences, chicken coops, sheds, and lightsPackage List:1 xSolar Panel1 x Controller1 x Clip Cable1 x On Board Charging Cable4 x Suction Cup2 x Buckle1 x Instruction ManualNote:Please read the instruction manual carefully before installation