SPL Audio CP-4X 4 Farad Car Audio Power Capacitor With Blue LED Volt Meter And Accent LightingFeatures: SPL CP-4X Digital 4 Farad Power Capacitor with Blue LED"s Digital 4 Farad Power Capacitor 4 Farad Capacitor for systems up to 4,000 watts Gloss black finish Blue LED lighting Digital blue voltage meter 1/4" Bolt post for power and ground connections Voltage: 11 - 16DCV E.S.R.(Equivalent Series Resistance): 0.0015 Ohm @ 120Hz Capacitance Tolerance: +/-10% Includes mounting hardware for a secure installation Charging resistant included Dimensions: 9-1/2" L x 4-1/2" W x 4" H