20W Flexible Polycrystalline Solar Panel Controller Dual USB Solar Charger for Car RV Marine Boat

Item Type:Solar Panel Controller Weight: Approx. 483g / 17.0oz Material:Monocrystalline silicon Product size: about 43.5x20CM /17.1x7.9in(with power storage function) Maximum power (PMAX): 20w Open circuit voltage (VOC): 20V Short circuit current (ISC): 1.5A Output: Dual USB plus DC5521 Working current: 2 (A) Working voltage: 5-18 (V) System voltage: 18 (V) Suitable for security cameras laptops car batteries automobiles tourist vehicles ships airplanes satellites space stations outdoor farming planting tourism solar street lights etc.