Belker 12W Multi-Voltage AC DC Power Supply Adapter Cord for 3/ 4.5/ 5/ 6/ 7.5/ 9/ 12 volt 1 amp devices Power Specification: AC Input: 100 120 V - 240V 50/60Hz DC Output: 3 4.5 5 6 7.5 9 12 V volts Max. 1A Cord length: 150 cm/ 5 ft Output Polarity: Center Positive [+] Tips: 7pcs DC plugs 7 DC Tips Spec.: 2.5*0.7mm 3.0*1.1mm 3.5*1.35mm 4.0*1.7mm 4.8*1.7mm 5.5*2.1mm 5.5*2.5mm Important Note: The Polarity of DC plug is Center Positive(+) ONLY, Outer Negative(-). Polarity is irreversible, please check carefully before buying. (***NOT Center Negative!***) Tips: NOT compatible with any over 12W devices. If the required voltage is not in the options, please choose the close voltage. For example, if you device needs 4V 8V 10V, you can choose 4.5V 7.5V 9V etc. Work with: This universal AC adapter power supply is fit for camera, router, tablet, radios, electronic Gizmos, replacing charger cords, rowing machine, small water fountain, GPS, MP3, webcams, security cameras, CD Player, speaker, games consoles, Battery-Run model, DIY projects, LED Strip, CCTV Camera, keyboard, Omron arm Blood Pressure Monitor, digital photo frame and many other household electronics.