About this item Suitable for 12V Battery - 12 Volt solar panel is an ideal solar power kit for a 12 Volt battery charging system and various 12V DC applications. Apply to RV, boat, roof, ground, motorhome, garages, fences, security cameras, greenhouse, and other flat surfaces. More Efficient - Adjustable solar panel tilt mounting brackets designed for the off-grid solar system can be adjusted from 0 to 60 degrees, improving solar panel energy efficiency by 25% - 30% compared with the horizontal mounting panel, helping the solar panel generate more energy. Complete Protections - Solar panel charge controller is compatible with a 12V 24V system. Prevent the battery from overcharge, over-voltage, discharge, short circuit, reversed polarity protection, waterproof, and fully protected battery. It has a fully 4-stage PWM charge management that increases battery life and improves system performance. Products Include - 14.65" *13.27" 20W solar panel, 5A 12V/24V charge controller, 42.13" alligator clips line, 40.55" extension cable with O-Ring, 39.76" Extension cord, 1 set adjustable solar panels to tilt mount brackets. We devote ourselves to providing the best customer service and bringing the best shopping experience to every customer. If you are not satisfied with our solar panel to have any quality or function problems, please feel free to contact us; we will reply within 24 hours and guarantee to provide you with a satisfactory solution. We provide 18 months warranty, Lifetime technical support.