8 x 1.Features:Micro-controller based for automatic, intelligent operationDesigned for 12V nominal solar panels and 12V battery systems3 Stage charging (Bulk, Absorption, Float) for 100% return of capacity and long battery lifeFor use with 2 types of batteries: Flooded/Wet Cell or Sealed AGMTotally sealed, splash proof weather resistant design (Ingress Protection Rating IP65)Automatically turns on lights when dark and turns off during the dayMosfet based reverse current blocking prevents night-time battery discharge and lowers power lossProtections: Overload, Over-Temperature, Battery Under/Over Voltage, Reverse PolarityWide operating temperature range of -40°C to + 60°CSpecifications:Input: 12VAmps: 8 AmpsWeight: 0.0 (in)Dimensions: 9.