What is Brand Extension? Explain briefly.

Brand Extension:

A successful brand is such as a powerhouse containing adequate energy to illuminate distant territories which a brand name consist of enormous appeal for consumer. This has stood the test of time and competition. It is derive force behind brand extension, that the power of one brand could be utilized to market other associated products.

To other driving force is the now day high cost of launching an overall new brand along with increasingly competitive escalating and market costs.
This makes sound financial and marketing sense to keep going the inner force of a valued brand for new incarnatim cycle and also those in the prime of life.