It's a 12-0-12 12V 5A Center Tapped Step Down Transformer. This center-tapped step-down transformer is a general-purpose PCB mounting main transformer. This Transformer has 230v primary winding and center-tapped secondary winding. This transformer gives output of 12v‚12v and 0v and its output current is 5A. The transformer is a static electrical device that transfers energy by inductive coupling between its primary winding and secondary winding. The core of this transformer has been made of high-permeability silicon steel. This type center tapped step-down transformer is generally used for AC to AC converters for small DIY projects ‚ battery chargers ‚ small power supplies. 

Features 

• It is a step-down transformer 
• Its input voltage is 230V AC 
• It's Output voltage 12V‚ 12V or 0V AC
• It's output current 5A 
• It's mounting type Vertical 
• It has soft iron core