✅[Product Parameters] Input: 100-240V AC, 50-60Hz, Output: Provide 7 effective voltage from 6V to 20V, adjust the required power through the switch, After power on select the voltage you need. ✅[All-In-One Adapter] Universal 65W Replacement Adapter with replaceable 8 optional connector plugs, Suitable For a Variety of Home Electronics. such as 6V to 20V home appliances, scales, routers, speakers, LEDs Light bars, CCTV camera systems, etc. ✅[New Upgrade] Built-in safety protection system - overvoltage protection/overcurrent protection/overtemperature protection/short circuit protection. We focus on producing universal power adapters, and you can easily convert to different output voltages by rotating the button. ✅[IMPORTANT MATTERS] DC plug polarity: internal positive (+), external negative (-), the polarity is irreversible. Please adjust the voltage to your device's required voltage before connecting to the device. Otherwise, your device will burn out due to high voltage. ✅[What You Get] 1 x 65W Multi Voltage Ac Adapter, 8 interchangeable tips