DB Link LCAP4KF 4-Farad High-Performance Capacitor Digital 4 Farad Capacitor Farad Capacitor for systems up to 4000 watts Bright blue digital LED voltage display 4 Farad Capacitance (-10% to +50%) 85 Degrees C-Max operating temperature Blue Digital Voltage Display 20V Max Includes Mounting Bracket & Charging Bulb