Brand-X LHYCAP30 3-Farad Hybrid Capacitor with Digital Voltage Display 3.0 Farad Capacitor - Working Voltage : 19 DCV - Dimensions: 4.25''W x 10.50''H x 3.15''L Blue DCV Digital Display/ Blue L.E.D Light Window - Surge Voltage : 21 DCV Greatly Improves Transition Power Response/Bass Impact Definition - E.S.R. (Equivalrnt Series Resistance) : 0.0015 ohm @ 120hz/25C Dual Post Contact Terminals Deliver Maximum Conductivity & Corrision Resistance - Capacitance Tolerance :?10% Capacitance :3,000,000 micro farad ( 3.0 Farad) - Mounting Brackets with Hardware & Charging Resistors are also Included