Alternating Current 100~240V, 50/60Hz ; Output: Direct Current 4~24V Adjustable, Max 2A 48W ; It can supply with any voltage between 4~24V,such as 4V 4.5V 5V 6V 9V 12V 14V 15V 16V 18V 19V 20V 22V 24V etc and any amp less than 2A, such as 500mA, 1A, 1.5A, 2A. LCD display will show the output voltage, in case that wrong voltage regulation damage your device.Based on hundreds of users feedback, we have made the following improvements: 1. The knob can be adjusted more evenly, and it can reach 13V ~ 14V by rotating 50%. 2. Increase the off gear to turn off the power without pulling the plug. 3.Add a polarity converter cable, which make it compatible with more devices,doubles its range of application.It comes with an original 5.5x2.5mm tip and 14pcs frequently used tips: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C and DC terminal connector. Can be applied to almost all commonly used electronic devices. You can screw wires onto it easily, perfect for DIY projects.The 48W all-in-one multipurpose Alternating Curren/Direct Current adapter fit for many 3~24V small household electronics such as LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, Wifi camera, USB Hub, hard disk box, Direct Current motor, Direct Current pump, digital photo frame, DVR NVR surveillance system etc.For indoor use only.Built-in multiple protection systems. Automatic over voltage cut-off, over current cut-off, over temperature cut-off, short circuit cut-off. We focus on producing premium quality and power adapters. No noise, no spontaneous combustion, no explosion, no fire hazard, risk-free to use. 6ft long power cable makes it convenient to use.ABS