Charge Controller w/LED Display - 12V/24V - 20AThe circuit board is completely electronically protected and with the LED user interface it is easy to check the battery state of charge at any time. Large terminals guarantee a simple connection to solar panels, battery and load. The SMC-20 works on PWM as a low loss series controller.Features:20 AmpsSeries controller, PWM controlAutomatic detection of 12/24VLEDs indicate battery state of chargeLarge terminals guarantee a simple connection of solar panels, battery and loadSpecifications:Input: 12V / 24VAmps: 20 AmpsWeight: .76 (lbs) / .345 (kgs)Dimensions: 7.36 x 3.78 x 1.77 (in)Dimensions: 18.7 x 9.6 x 4.5 (cm)Applications:Recreation vehiclesService vehiclesBoatsField workTelecommunicationsMobile officesConstruction sitesWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.