PYLE PLCAP4.1 4.1 Farad Dual Link Capacitor with Blue Neon 4.1 Farad Neon Light Digital Display Power Capacitor - Over Voltage Protection Circuit Red Digital Voltage Readout - Clear Lucite Mounting Brackets Blue Neon Accent Lighting - Includes Mounting Charging Hardware DC 12- 24 volt - Dimensions: 2.5'' H x 5.5'' W x 9.25'' L Electronic Polarity Protection Circuit