Planet Audio 3.5 Farad Car Capacitor For Energy Storage To Enhance Bass Demand From Audio System

* 3 Digit Bright Red Digital LED Voltage Display * Audible Warning Tone for Reverse Polarity, Voltage Overload and Low Battery Voltage * Capacitance: 3,500,000, Capacitance Tolerance: + / - 10%, Voltage Measurement Accurate to + / - 0.1 VDC * Working Voltage: 20 VDC, Equivalent Series Resistance: <0.00195 mW @ 120 Hz / 25°C * Dimensions: 4 x 4 x 11.4, Unit Weight: 6.4 Lbs * 1 Year Warranty