... performance, OVP,OCP,Hi-pot etc. 24W AC ADAPTER 1.Quality certification CCC,UL,cUL,BS,GS,KC,PSE,SAA,CE etc ... mechanism based on customer detail spec.7.Overall quality reliability test such as loading output,no-loading output,full load efficiency ... ,OCP,OVP,Hi-pot,Resistance,burning-in/aging,temperature shock,drop test,vibration test etc.