To regulate the factory production standards,leading the industry standard,the all products must be processing the sine wave aging test before delivery,the time up to 4-8hours.An ordinary dance, the use of only 30% of the components of the aging.but about the extreme aging,all parts of the utilization rate increased to 95% or more, a comprehensive test amplifier may exit to ensure the stability of the factory to reduce after - sales seveice, product comprehensive competitiveness.