Adjustable VoltageInput: AC 100~240V 50/60Hz Output Voltage can be adjusted from 3V to 24V DC (such as 3V 4V 4.5V 5V 5.5V 6V 9V 12V 14V 15V 19V 20V 24V). Wattage Max 3A 72W; It can supply with amps less than 3A such as 300mA 500mA 1A 1.5A 2A 2.5A 3A. 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 ~ 14V 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)