... vol etc. 1.Design and manufacture PC+ABS material power adapters.2.18W~24W DC12V/9V constant voltage ... supply, Housing use PC+ABS material.3.Quality certification CCC,UL,cUL,CE,BS ... KC,PSE,SAA etc.4.Provide constant current power supply for digital electronics products.5.Used quality ... ,temperature shock,drop test,vibration test etc.10.Power Switching Efficiency: >83%.11.Load/no-load ...