A transformer is a static electrical device that transfers electrical energy between two or more circuits. A varying current in one coil of the transformer produces a varying magnetic flux, which, in turn, induces a varying electromotive force across a second coil wound around the same core. Electrical energy can be transferred between the two coils, without a metallic connection between the two circuits.

Mixed Quality Transformer, power supplies for all kinds of project & circuit boards. Step down 230 V AC to 12V with a maximum of 5A current.