Boss CPBK2 2 Farad Car Digital Voltage Capacitor Power Audio Cap+8 Ga Amp Kit Equivalent Series Resistance (ESR): 0.00195 Ohms @ 120 Hz @ 25 Degrees C Low Level Input Voltage: 20 Volts Remote Terminal Screw Capacitance: 2 Farad, 2000000 Microfarad High Level Input Voltage: 24