Ignition coil supplies the required electrical energy to ignite the air/fuel mixtures in the engine’s combustion chamber. A consistent and high-energy output under all operating conditions and throughout entire engine speed range is the key to effective combustion in today’s low emission, high efficiency engines. Ignition coil is a type of energy storage and transformer that features primary and secondary coils wound around an iron core. The role of ignition coil is to transform the low voltage in the car’s battery into the high voltage which are used by the spark plug to generate the spark.