PAC PF-1 2.35-Inch Cooling Fan 12-Volt Great For Cooling Smaller Amplifiers Retains the factory amplifier 12 volt power 12-VDC Cooling Fan 2.5-Inch Polycarbonate housing Moves 23-Cubic Feet Per Minute (CFM) Draws 0.13-Amps of power Ball Bearing Mounted Impeller