Universal AC Adapter, CUGLB 30W Multi Voltage Switching Power Adapter with 6 Selectable Tips and 5V2.1A USB Port for 3V - 12V Household Electronics Routers Speakers CCTV Cameras Smart Phone Multi-Voltage Adapter - Input: AC 100v~240V 0.25A 50/60Hz, Output: 3V/4.5V/5V/6V/7.5V/9V/12V - MAX 2000 mA. This replacement power adapter provides a range of voltages, FULL PROTECTION of over Voltages/ over Current/ short Circuits/ over Temperature. Multi-Tips - This universal ac dc adapter has 6 selectable adapter tips, which can be used for various appliances. Ideal for MP3, Portable DVD, Router, Radio, Speaker, CCTV camera LCD, electronic toys, baby monitor etc. IMPORTANT - [DC Plug Polarity: inner Positive(+), outer Negative(-), Polarity is Not reversible.] Attention: If you are looking for an Opposite Polarity Charger, Please Search https://www.amazon.com/dp/B01MXF68T0. Max 2A output - Maximum Current of up to 2a - If your device requires less power, such as 200ma, 300ma, 400ma, 500ma, 600ma, 750ma or any other up to 2000ma it will work with this switching adapter with a matching tip and proper voltage/polarization. Package include: 1 x 30W Multi Voltage Ac Adapter, 6 x Plugs, 1 x key; With safe and multiple function, it's easy to operate, and the adapter is very durable, it's secure to use. Multi Voltage 30W replacement power adapter for many kinds of small household electronics, like Router, Speaker, CCTV camera system, LED strips and other compatible devices. <span class="a-text-bold">USB Port 5V2.1A:</span> Can used for charging any 5v devices, such as mobile phone, portable charger ect. <span class="a-text-bold">DC Plug Polarity: inner Positive(+), outer Negative(-). </span>The Polarity is not compatible ALL Devices. It is not compatible devices that require Central Negative (-) Polarity. <span class="a-text-bold">Note:</span>There is also one<span class="a-text-bold"><u>5.0V 2.1A USB port</u></span>, so this 30W AC Adapter can also function as an adaptor to turn any USB cable into a charger. Perfect for USB Charging Smartphones and other Devices. <span class="a-text-bold">[Choose Correct Voltage before Powering]</span> Small household appliances usually don&#039;t have circuit protection, if with the wrong voltage, may damage your device. It is important to choose the right voltage before powering 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 For the voltage selector, you adjust it using the provided key Tip1: 5.5x2.5mm Tip2: 5.0x2.1mm Tip3: 4.0x1.7mm Tip4: 3.5x1.35mm Tip5: 3.0*1.1mm Tip6: 2.5*0.7mm 1 x 30W Multi Voltage Ac Adapter with USB 6 x Plugs 1 x little key