Have you lost your original power cable or are you traveling with multiple devices? You don't need to carry all your individual power cables with this adaptable universal power supply. In fact, you won't have to search for your 3, 4.5, or 6-volt adapter for your various devices. One is enough. Just choose the correct voltage. Additionally, you can connect any device with different tips. Universal transformer, the current in the universal 3-12V power adapter is compatible with 300mA 500mA 800mA 1000mA, output: 1.2A Max. 12W power, compatible with 10W. 6 Conversion adapters: 2.5*2.5mm, 5.5*2.1mm, 4.0*1.7mm, 3.5*1.35mm, 3.0*1.0mm, 2.5*0.7mm, super suitable for your charging needs even at home. The polarity of the DC plug on this charger is Center Positive (+) and Outer Negative (-), usually marked as: - (+ and the polarity of the connectors CANNOT be reversed. interface during use. It can also extend the lifespan. The 12W replacement comes with 6 different sized connectors, they allow many electrical appliances such as Router, Radio, BT speaker, CCTV LCD camera, VTech Kidimagic Starlight, Kidi LightShow Party, OMRON, USB hub, TV box, LED lights, speakers, etc.