For use of modern lights, the consumers of lights at age of 18-24 is about 18.6%, but those at age of 25-29 takes 45.1%. It is a big proportion.  These comsumers' thought is relatively open. They pursuit individuality. Modern lamps are just right to meet their demand.  The comsumers at age of 30-34 is about 22.7%. But they will be not interested in modern light as ages grow. Currently, the modern lamp is in the early stage of development. It will reach the peak as the individual demand.

Modern lights must be new style, which decides short product life cycle. So the design and development must be faster. It causes more investiment on R&D for enterprises.