fully enclosed waterproof, wireless remote setting technology, no buttons exposed SOLAR ... Protection performanceAnti reverse connection protectionWorking temperature -40oC~+60oCWorking modePWM smart charging, Energy saving modeCommunicationInfraredWeight10A/20A: 250gIP GradeIP67(waterproof,anti-corrosion,anti ... and Weather-ability Testing Machines, etc.. 20A DC12V/24V waterproof solar controller