Description This solar charge controller adopts the advanced digital techniques and operates fully automatically The PWM battery charging mode can greatly increase the lifetime of your battery and has various unique functions and quite easy to use features Specifications ModelCMG 2420MaterialPlasticColorBlackVoltage of Battery12V 24V AutomaticRated Charge Discharge Current20AUSB Output Voltage5VTotal USB Output Current3ADC Output Voltage12VTotal DC Output Current2AOverload Short Circuit Protection1 5 Times by Rated CurrentShort Circuit Recovery Time10sOpen Circuit Voltage of Solar Panel40VNo Load Loss0 05WOver Voltage Protection15V x2 24VFloat Charge Voltage14V x2 24VDischarge Recovery Voltage12V x2 24VOver Discharge Voltage10 5V x2 24VControl ModeSoftware Intelligent ControlWorking Temperature 35 55CItem Size135 100 25mm 5 31 3 94 0 98in L W H Item Weight222g 7 83ozPackage Size14 5 12 3 8cm 5 7 4 72 1 5in L W H Package Weight270g 9 54oz Features LCD screen display all parameters With output switch intelligent control easy to operate Fully automatic operation Microcontroller digital accuracy A key to open and close the load PWM charging mode SOC With separated temperature detected circuit high precision temperature compensation function DC 12V and USB 5V charging for DC lamp and phone Protection Overload protection Short circuit protection Lighting protection Under voltage protection Over charging protecti