Price: $15.99
(as of Jun 11, 2025 16:44:44 UTC – Details)
Product Description
Parameter
Input: AC 100V~240V 50/60HzOutput Voltage: DC 3V~12V AdjustableOutput Current: Max 2.5AOutput Wattage:Max 30WOutput DC connector:5.5mm x 2.5mm (inside”+”, outside”-“)Reverse polarity converter: 5.5mm x 2.1mm14 Tips Size: 6.5×4.4mm+Pin, 5.5×2.1mm, 5.5×3.0mm+Pin, 5.0×2.5mm, 6.3×3.0mm, 5.5×1.7mm, 4.8×1.7mm, 4.0×1.7mm, 3.5×1.35mm, 3.0×1.1mm, 2.5×0.7mm, Micro-USB, Type-C and DC terminal connector.Power cable length: 4.9ft / 150cmSafety Compliance: FCC / CE/ RoHS / CCCWorking Temperature: 0~40℃Ambient Humidity: 5~95% Non-CondensationWeight: 0.66 lb / 300g
Package included
1x 30W Universal Power Supply Adapter; 14x DC Tips; 1x Reverse polarity converter cable
Attention:
The power cord between power brick and DC plug will lead to 0.4V~0.6V voltage drop, so we designed the screen displayed voltage was 3.5V~12.5V. Only in this way can your device really get 3V~12V voltage. This is the reason why we advertise the power supply’s voltage range is 3V~12V, not 3.5V~12.5V.
Caution:
The 4cm short black power cord is a reverse polarity converter, not extension wire. It is used to reverse the original polarity of the power supply output port ( reverse the internal positive pole to negative , and the external negative pole to positive). Please confirm the polarity of your devices’ power port before use. If the positive and negative poles are reversed, it will cause short circuit and damage your device.
Is this 3~12V 30W universal power supply (PS) compatible with your device?
1. Check Voltage
Please find the spec label of your device and check the working voltage. It should be among 3V~12V DC, not lower than 3V or higher than 12V DC. Otherwise, your device will not work or be damaged.
2. Check Current
Check the max current your device will draw. It should be equal to or less than 2.5A, such as 1A,1.5A, 2A, 2.5A. Otherwise, your device won’t work well and the PS will be damaged very soon.
3. Check Plugs
Check the power input port of your device. The PS is equipped with 14 pcs frequently-used DC tips. Please confirm wether it fits for your device before buy. If you can ‘t confirm, please measure it with a ruler.
4. Check Original PS
If you have a original power supply for reference, their output voltage, plug size, polarity should be the same . If our PS’s current is equal to or higher than original one’s, then our PS will work with your device.
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Customer Reviews
4.5 out of 5 stars 99
4.4 out of 5 stars 78
4.3 out of 5 stars 92
4.3 out of 5 stars 52
4.4 out of 5 stars 1,850
4.4 out of 5 stars 1,850
Price
$27.99$27.99 $27.99$27.99 $27.99$27.99 $27.49$27.49 $18.99$18.99 $17.99$17.99
Max Output Amps
6A 12A 4A 3A 3A 2A
Output Volts
3.5V~24V DC 3.5V~12V DC 9V~36V DC 9V~36V DC 5V~20V DC 9V~24V DC
Max Power
144W 144W 144W 108W 60W 48W
Output Tip
14 Tips 14 Tips 14 Tips 14 Tips 14 Tips 14 Tips
Input Volts
AC 100V~240V AC 100V~240V AC 100V~240V AC 100V~240V AC 100V~240V AC 100V~240V
Input: AC 100~240V, 50/60Hz; Output: DC 3V 4.5V 5V 6V 7.5V 9V 12V adjustable, Max 2.5A 30W; It can supply with any amp less than 2.5A, such as 300mA 500mA 800mA 1A 1.2A 1.5A 1.8A 2A 2.1A 2.2A 2.4A 2.5A. Equipped with a 5V 2.1A USB port at the bottom, you can connect any standard USB cable to it. (USB cable not included).
It comes with an original 5.5×2.5mm tip (inside”+”, outside”-“) and 14pcs frequently used tips: 6.5×4.4mm+Pin, 5.5×2.1mm, 5.5×3.0mm+Pin, 5.0×2.5mm, 6.3×3.0mm, 5.5×1.7mm, 4.8×1.7mm, 4.0×1.7mm, 3.5×1.35mm, 3.0×1.1mm, 2.5×0.7mm, Micro-USB, Type-C and DC terminal connector. We especially add a reverse polarity converter, which will double its application scope.
The 30W all-in-one multipurpose AC/DC adapter fit for many 3~12V under 30W small electronics such as LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, Wifi IP camera, USB Hub, hard disk box, CD Player, DVD Player, DC motor, DC pump, digital photo frame, DVR NVR surveillance system etc. This product is an AC to DC adapter, NOT charger!!!It can’t be used to charge electronic devices with batteries, such as laptops. Otherwise, it may damage your device.
Built-in multiple safety 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 safety power adapters. No noise, no spontaneous combustion, no explosion, no fire hazard, safe to use. 6ft long power cable makes it convenient to use.
Please choose correct voltage before plug it to your device. Wrong voltage may damage your device. We recommend that you use this power supply to power devices that do not exceed 80% of the maximum power of the power supply.
Customers say
Customers find the power adapter works well, with adjustable voltage from 3V to 12V and plenty of additional adapter plugs for various devices. Moreover, the adapter fits about anything and customers consider it well worth the cost. However, the build quality receives mixed feedback, with some saying it’s well-built while others find it cheaply made. Additionally, the power source and ease of use also get mixed reviews, with several customers noting it doesn’t output 30W and others mentioning the lack of instructions.
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