Sound Storm Laboratories CAP350B 3.5 Farad Capacitor with Digital Voltmeter, Black Graphic Capacitance: 3,500,000 mFCapacitance tolerance: +/-10%Working Voltage range: 20 VDCSurge: 24 Volt ESR: &lt;0.00195 Ohm @120 Hz, 25CChrome Plated Posts3-Digit, super bright red LED Voltage meter Mounting Brackets and Hardware Included Dimensions: 11-3/8" H (including terminal) x 3-15/16" D Capacitance: 3,500,000 mF Capacitance tolerance: +/-10% Working Voltage range: 20 VDC Surge: 24 Volt ESR: &lt;0.00195 Ohm @120 Hz, 25C