... .Design for Alcoran , 2.Precise design performance, OVP,OCP,Hi-pot etc. 1.Quality certification CCC,UL,cUL,BS,GS ... requirements.5.Meet Rohs,SGS requirements.6.Design the electronics function and mechanism based on customer detail spec.7.Overall quality reliability test ... full load efficiency,noise data,short circuit protection,OCP,OVP,Hi-pot,Resistance,burning-in/aging,temperature shock,drop test, ...