Solar Battery Maintainer, Dual USB Easy Installation Monocrystalline MPPT Controller 100W Solar Panel Charger For Car Batteries 100W 18V Solar Battery Trickle Charger Maintainer Portable USB Controller Monocrystalline Panel Charging Kit 42 X 28cm Product Features [100W Stable Output] With a stable 100W output, this Monocrystalline Solar Panel can charge two devices simultaneously using dual USB ports.[Excellent Performance] Solar panel features high conversion efficiency, output efficiency, and low light performance, ensuring excellent stability and durability.[Easy Installation] Simply position the solar panel in a direction facing the sun and connect the corresponding ports with products requiring power. Technical Specifications Item TypeSolar Panel KitProduct SizeApprox. 42 x 28cm / 16.5 x 11inMaterialMonocrystalline silicon, ABSPower100W without power storage functionOutput18VController Interface1 x TYPE C interface, 2 x USB interface, 3 x DC interfaceController OutputMPPT USB PD QC3.0Weight674 g / 23.8 ozapprox. Package List 1 x Solar Panel1 x Connection Cable1 x Cigarette Lighter1 x Clip Set1 x Controller4 x Suction Cup1 x Instruction Manual Note No power storage function.