Belker 36W 5V-15V Universal AC DC Adapter Power Supply for LCD LED Strip Light Router HUB Speaker Smart Phone Tablet 1A 2A 3A 3000mA Max Universal AC DC Adapter - AC Input:100-240V 0.25A 50/60Hz, DC Output:5v 6v 7.5v 9v 12v 13.5v 15v. Advanced secure technique, with full PROTECTION of over Voltages/ over Current/ short Circuits/ over Temperature. All-in-one Adapter - This 36w replacement ac adapter comes with 8 interchangeable tips, which makes it fits 95% of AC/DC home appliances, Such as 5V to 15V Household Electronics, Tablet PC, Scales, Routers, Speakers, LED Strip Lights, CCTV camera system, USB Charging Camera, and so on. Important Note - The polarity of DC plug is inner Positive(+), outer Negative(-). Some musical device requires inner Negative and outer positive (totally opposite), please check carefully before buying. Any problems, please contact us at any moment. Instructions for Use - Please make sure of choosing a right voltage before powering your device. The wrong voltage may damage your device. If your device use Alkaline battery AA or AAA , then each piece is 1.5V, 2 piece choose 3V, 3 piece choose 4.5V, 4 piece choose 6V, etc Multifunctional 36W Adapter - Variable voltage is easy to select, you can converts to different voltage with ease using the provided key. 5.5mm*2.1mm DC Power Cable Connector Plug, easy to connect and practical to use. Supporting DC 12V-2A or 12V-1.5A appliances