Universal Power Adapter 3A 72W Variable Power Supply Adapter AC 100V-240V to DC 3V-24V, Adjustable Power Supply with Polarity Converter and 14 Different Plugs, 3000mA Max
Original price was: £18.99.£16.99Current price is: £16.99.






Price: £18.99 - £16.99
(as of Jun 22, 2025 17:56:05 UTC – Details)
Specifications:
Input: AC 100V~240V 50/60Hz.
Output voltage: DC 3 V ~ 24 V adjustable.
Output current/power: 3A, 72W max.
Output connector: 5.5 mm x 2.5 mm (inside “+”, outside “-“).
Note:
The power cable between the power block and DC plug leads to 0.4V~0.6V voltage drop, so we designed the screen display voltage 3.5V~24.5V. Only in this way can your device really get 3V~24V voltage. This is the reason why we advertise that the voltage range of the power supply is 3V~24V, not 3.5V~24.5V.
It is normal that the temperature of the power adapter increases during the operation of the devices.
Attention: This power supply cannot charge products with batteries, otherwise the batteries may be damaged.
Package includes:
1 x 72W Universal Power Adapter
14 x DC Tips
1 x Reverse Polarity Converter
Is this 3~24V 72W universal power supply (PS) compatible with your device?
1. Check Voltage:Please find the specification of your device and check the working voltage. It should be below 3V~24V DC, not lower than 3V or higher than 24V DC. Otherwise, your device will not work or be damaged.
2. Check current: check the maximum current that your device will draw. It should be equal to or less than 3A, such as 1A, 1.5A, 2A, 2.5A, 3A. Otherwise, your device will not work well and the PS will be damaged very soon.
3. Check the plug: check the power input of your device. The PS is equipped with 14 commonly used DC tips. Please confirm whether it fits your device before purchasing. If you cannot confirm this, please measure it with a ruler.
4. The short black power cable is a reverse polarity cable and not an extension cable. It is used to reverse the original polarity of the power supply output port. Please confirm the polarity of your device’s power port before use. If the positive and negative poles are reversed, it may cause an issue with your device.
Package Dimensions : 18.1 x 10.5 x 5.2 cm; 370 g
Date First Available : 3 July 2024
Manufacturer : Amtake
ASIN : B0D8P8FF4V
Item model number : N-DY-3A-72W-Y
Country of origin : China
Guaranteed software updates until : unknown
【Adjustable Power Adapter】Input: AC 100~240V, 50/60Hz, output voltage can be adjusted from 3V~24V DC. Power Max: 3A, 72W. It can supply with amps less than 3A, such as 300mA, 500mA, 1A, 1.5A, 2A, 2.5A, 3A. Referring to the industry standard requirements plus or minus 5% tolerance, the measured output voltage of 2.85V-25.2V is within the standard and normal. Before connecting this product, match it to the voltage range of the unit.
【Upgraded Variable Power Supply】Integrated protruding rotatable button to adjust the voltage according to your device, the LED displays real-time voltage, which helps you control the real-time state of charging. The overload protection, over-voltage protection, and short-circuit protection ensure stability and smooth operation and provide safe charging. Good interference suppression performance with stable output ensures good service life.
【Multiple DC Adapter Tips】Come with 14pcs commonly used tips: Micro-USB, Type-C, DC terminal connector, 6.5 x 4.4 mm + pin, 6.3 x 3.0 mm, 5.5 x 3.0 mm + pin, 5.5 x 2.1 mm, 5.0 x 2.5 mm, 5.5 x 1.7 mm, 4.8 x 1.7 mm, 4.0 x 1.7 mm, 3.5 x 1.35 mm, 3.0 x 1.1 mm, 2.5 x 0.7 mm. Variable Power Supply equipped with a reverse polarity converter. Our DC plug polarity: inner positive(+), outer negative(-). You can use this reverse polarity converter to expand the application range of the adapter even more.
【Widely Applicable】3V~24V 3A 72W Power Adapter, The all-in-one multi-purpose AC/DC adapter compatible with many electronics such as Wireless Router, ADSL Cats, HUB, Security Cameras, WiFi Camera, DVD Player, Audio/Video device, 3D Printer, CCTV System, LCD Monitor, speaker, Sound bar, digital piano, portable Keyboard, IR illuminator, LED strip light, etc. and other devices under 72W.
【Included Products】Package includes 1 x 3~24V 72W universal AC/DC adapter, 14 x DC tips, 1 x reverse polarity converter. Built-in multiple safety protection systems and safe to use. All products are tested. If you have any questions or dissatisfaction with the product, please feel free to contact us. We will provide you with satisfactory service within 24 hours.
Customers say
Customers find the power adapter works well and appreciate its versatility, with one mentioning it comes with lots of adapters. The fuse quality receives mixed feedback, with one customer noting the lack of fuse is disconcerting.
13 reviews for Universal Power Adapter 3A 72W Variable Power Supply Adapter AC 100V-240V to DC 3V-24V, Adjustable Power Supply with Polarity Converter and 14 Different Plugs, 3000mA Max
Add a review
Original price was: £18.99.£16.99Current price is: £16.99.
Jezport –
Works well
Good PSU lots of adapters and works well just make sure you dont knock the control to a higher voltage when set
Ian –
Ideal.
Perfect for my application. Voltage control accurate.
Anonymous –
Does the job.
My only gripe with this is the LED display is inconsistent with the display of at least one number so the 2 in 12 appears like it’s missing a line or two on the display. Other than that, it does the job.
paul murdie –
Fantastic product
Originally got this to change a 40 year old miners lamp battery as I needed a 4V supply, although the product was probably not intended for this application, it still worked well for me . I have since found other applications for this , good value for money and overall build quality is good, only problem I have is it had one of them small mainâs plugs, I replaced that with a standard plug with fuse, that was more of a preference as I find the small plugs difficult to grip and the lack of fuse is disconcerting
Runner –
Hychicka screwdriver
Good little unit. Charges well , only criticism is potentiometer is really sensitive. As instructed set up voltage prior to putting charge cable on equipment.
jope –
ok
works fine.
Jason Williams –
Senior moment
Senior moment did not read instructions to item i was powering and product melted. No fault of product.
jorei –
Excellent.
Easy to use and versatile.
Felice –
funktioniert normal. Kaufen Sie ein Modell mit der richtigen Leistung [Watt] oder auch etwas stärker möglich.Stellen Sie die Spannung [Volt] am Reglerrad auf Wert für Endgerät ein: Zuerst mit kleiner Stufe beginnen und langsam höher schalten, nur bis Voltanzeige passt. Zu hohe Spannung kann Schaden auslösen in Elektronik.
T. Bartsch –
Macht was es soll! Dank des Displays leicht einzustellen und mit den beigefügten Adaptern gut bestückt.
Reini –
Dieses Gerät liefert stufenlos die gewünschte Spannung. Viele Adapter perfektionieren den Kauf.
Sailor –
Neben den vielen Steckern , auch sehr positiv das die Ausgangsvoltzahl individuell einstellbar ist.
Joe –
Leider bin ich mit diesem Gerät in keiner Weise zufrieden. Je nach Belastung/ Anforderung schwankt das Netzteil bis zu 0,8 V vom Wunschwert ab. Ich habe mir gedacht, ich nehme das Leistungsstarke mit 5A und 120 Watt um Leistungsreserven zu haben, jedoch ist dies mit normalen Anforderungen schnell überfordert.Schade, selbst den Support scheint das nicht zu interessieren, denn die Antwort: “Das tut uns Leid das Sie nicht zufrieden sind und Probleme haben. Bitte lassen sie uns doch wissen wenn wir etwas verbessern können.”Dies ist war die Kurzform der Antwort in 2 Sätze gepackt. Wow lieber Hersteller, Support geht besser.Update:Der Versender hat sich doch noch der Problematik angenommen und ich habe die Rezension angepasst. Man muss bedenken, dass bei dieser Art von Netzteil eine Abweichung von +/- 5% zu rechnen ist. So die Aussage vom Verkäufer, der auch Kontakt mit dem Hersteller aufgenommen hat. Das Netzteil sollte also nicht für empfindliche Bauteile oder Geräte die eine gleichbleibende Spannung benötigen benutzt werden.Die im Nachgang gute Kommunikation und den Lösungsansatz des Verkäufers bewog mich zu einer Neubewertung der Rezension.