Car audio power capacitor is mainly used for car audio system; it can store necessary power for your amplifier. Audio power capacitor stores necessary power that your amplifier will need to punch those big bass notes while with limiting clipping. Specifications: 1) Working rated voltage: 14V,16V or 20V 2) Surge voltage: 18V, 20V or 24V 3) Operating temperature range: -40-95°C 4) Rating capacitance: 0.5, 1, 1.5, 2.0 farads 5) Tolerance: ±10%, 20% or 30% at buyer\'\'s option 6) Display tolerance: ±0.2V (if with digital display) 7) ESR: