Home appliance need to pass a series of strictly inspections and verification during development, manufacturing,quality
control and burn-in test. Products have been tested under various voltage and frequency which are different than the grid.
Preen's AFV series provides a pure sine wave power with great voltage regulation, high frequency stability and low total harmonic distortion. User can easily convert the utility power to specific voltage and frequency and set up the testing sequences via AFV's touch screen or computer. It helps user to ensure the home appliance's performance and reliability in abnormal power environment.