31 Jul AC 110V/220V to DC 5V 30A 150W Universal Regulated Switching Power Supply Ada…
Left is: AC 110V, Right is AC 220V. There is a yellow botton on the right corner. Dust the switcher out every 2 or 3 months if necessary. Then wait about 10 minutes. It will be auto recovered. Then reconnected it, it will work well....