0.22F 10V HIGH CURRENT CAPACITOR 

Manufactured by NEC as part of the Super Capacitor range, their part number FA1A224Z  these are a 0.22F (that is Farad not microfarad) at 10V.

 
Large radial can high current electrolytic capacitor.

 FA Series Supercapacitors, also known as Electric Double Layer Capacitors (EDLCs), are intended for high energy storage applications. Supercapacitors have characteristics ranging from traditional capacitors to batteries. As a result, supercapacitors can be used like a secondary battery when applied in a DC circuit.  

Dimensions are 36.5mm diameter x 27.5mm high with pins at 15mm centers.

PRICED AND SUPPLIED EACH X1
AT HALF THE USUAL DISTRIBUTORS PRICE.