The Multi Voltage Switching universal AC power adapter supply Decription: Plug Type:UK Material: ABS+PC+Fireproofing Output: 3V ~ 12V Length of the cable about: 112 cm Power Supply Input: AC 100V~240V 0.25A 50/60Hz Power Adapter Output: 3V / 4.5V / 5V / 6V / 7.5V / 9V / 12V , Current: Max 2000mA Connector Tip Size: Tip1: 5.5x2.5mm Tip2: 5.0x2.1mm Tip3: 4.0x1.7mm Tip4: 3.5x1.35mm Tip5: 3.0*1.1mm Tip6: 2.5*0.7mm USB Port 5V 2.1A: Can used for charging any 5v devices. DC power adapter Multi Voltage perfect to DC Powered or Battery Operated Electronic Devices, for example Portable DVD, Portable CD player,Router, Radio, Speaker, Bluetooth speaker, CCTV Camera LCD, Children Toys, LED strips and other electronic Devices. Instruction: 1. The adapter NOT compatible with laptop or other high power equipment; 2. Polarity is irreversible; 3. Choose the right DC output voltage. (Take the screwdriver set the ACCURATE voltage, if the arrow is in the middle of the two voltages may also lead to no output issue); 4. Should there is any product quality issue, or not sure whether this item would work for you, please feel free contact us,we'll reply you within 24hours; 5. Choose the correct adapter tip and make sure that it's firmly attached to the dc input port of your device. Package include: 1 x 30W Multi Voltage Ac Adapter 6 x DC Plugs 1 x little key