High grade laminations are used to avoid losses. The box is made from a thick metallic sheet. An piano type switch is provided for on/off operation and a 1.6m, 2 cores flying lead is provided for main connection and output is via a special Anchor make 2 Pin socket is provided to avoid shock due to the leakage of the current. This transformer is an Auto Leak type, giving a starting voltage 440 V which automatically reduces when the lamp has struck.