... Surge vol etc. 1.Design and manufacture PC+ABS material power adapters.2.18W~24W DC12V/9V constant voltage supply, ... power supply for digital electronics products.5.Used quality safted components and standard components, such as rectifier,MOSFET,capacitor,IC,transformer ... -in/aging,temperature shock,drop test,vibration test etc.10.Power Switching Efficiency: >83%.11.Load/no-load output tolerance ...