... 100-240v 50-60hz laptop ac adapter 1.CE,FCC,Rohs 2.over current,short curcuit protection. 3.100% full-load burn ... no cold solder ,lack of components, no tin dross, no short-circuit, no open circuit, no bad led indicator ,no high voltage, no low voltage, no output, etc 3 ... full inspection: to make sure no scratched case, no cracked wires ,no missing screw, no label misaligned, etc2 sampling inspection: ...