Adjustable VoltageInput: AC 100~240V 50/60Hz Output Voltage can be adjusted from 3V to 36V DC (such as 3V 4V 4.5V 5V 5.5V 6V 9V 12V 14V 15V 19V 20V 24V 30V 36V). Wattage Max 2A 72W; It can supply with amps less than 2A such as 300mA 500mA 1A 1.5A 2A. Upgraded Version Power SupplyBuilt-in protruding rotatable button for adjusting the voltage suitable for your device The LED displays real-time voltage which helps you control real-time condition of charging. The knob can be adjusted more evenly and it can reach 13V ~ 18V by rotating 50%. Increase the off gear to turn off the power without pulling the plug. Multiple DC TipsEquipped with 16 frequently used plugs: Micro-USB Type-C DC terminal connector 6.5 x 4.4 mm+Pin 6.3 x 3.0 mm 5.5 x 1.7 mm 5.5 x 3.0 mm+Pin 4.8 x 1.7 mm 4.0 x 1.7 mm 3.5 x 1.35 mm 3.0 x 1.1 mm 2.5 x 0.7 mm 5.5X 2.5 mm female to alligator clip3pcs 5.5X 2.5 mm male connector with cable. Safety Protection DesignBuilt-in protruding rotatable button for adjusting the voltage suitable for your device the LED displays real-time voltage which helps you control real-time condition of charging. The power supply built-in multiple safety protection systems: Automatic over voltage cut-off over current cut-off over temperature cut-off short circuit cut-off. No noise no spontaneous combustion no explosion no fire hazard safe to useWidely UsedThe 72W all-in-one multipurpose adapter fit for most AC/DC home appliances. Can be perfect for Wireless Router ADSL Cats HUB Security Cameras WiFi Camera DVD Player Audio/ Video device 3D Printer CCTV System LCD Monitor Bluetooth speaker Sound bar digital piano portable Keyboard IR illuminator LED strip light and other household / portable devices. (Check dc jack before buy: 5.5 x 2.5 mm compatible 5.5 x 2.1 mm)