... exposed,can be fully immersed in water SOLAR CONTROLLERSystem voltage12V/24V Automatic AdaptedRated charging current5A/10A/20AMaximum charging ... -40oC~+60oCWorking modePWM smart charging, Energy saving modeCommunicationInfraredWeight10A/20A: 250gIP GradeIP67(waterproof,anti-corrosion,anti-dust)WarrantyOne yearMANUFACTURING ... , and Weather-ability Testing Machines, etc.. 10A solar system controller