1Efficient: The panel has good light transmission, which improve the efficiency of monocrystalline solar cell, the power can reach up to 20W. 2High Performance: Adopted high efficiency polysilicon, 20W power design, compact size,long service life, can generate more electricity in full sunlight. 3Application: Suitable for various off grid applications like shed, cabin, gate opener, etc. where 12V batteries is used, and fits for car, Rv, boat, marine, trailer, camper, pump etc. 4Complete Kit: The package includes battery panels, clips, cigarette lighter cables, Obd harnesses, and four suction cups, which can easily install solar panels to the Rv roof. 5Durable Material: The panel is well protected by the thickened frame, lightweight and easy to carry, ultra thin, can be stored and carried more easily, designed for long term use.