12V 4A Power Supply – COOLM AC 100-240V 50/60Hz to DC 12 Volt 4 amp 4Amp 48W Power Converter Charger 12V4A + 5.5×2.1mm DC Female Jack Socket for 12V LED Strip Lights CCTV Camera
$12.99
Price: $12.99
(as of Jan 06, 2025 11:21:54 UTC – Details)
Product Description
COOLM DC 12V 4A 48W Power Supply AC 100-240V 50/60Hz to DC 12V AC/DC Power Adapter with 5.5×2.5mm DC Plug + 5.5×2.1mm DC Female Jack Socket for 12V LED Strip Lights
Specifications:
Input: 100 – 240V AC 50/60Hz
Output: DC 12V 4A
Max Wattage: 48W
Connector size: 5.5mm x 2.5mm (Compatible plug 5.5mmx2.1mm Plug size)
DC Cable Length: 110cm ( 3.6ft )
The adapters Connector: inside positive (+) . outside negative (-)
Power adapter with LED indicator.
With IC Chip: Short circuit protection, Overload protection , Over voltage protection
It perfect replacement for 1A / 1.5A / 2A / 2.5A / 3A / 3.5A as amperage isnt forced. (If your previous Adaptor was less than 4A then this will be a perfect replacement as amperage is NOT Forced)
AC to DC Power AdapterInput: AC 100 – 240V 50/60HzOutput: DC 12V 4AAC Plug type: US Wall Plug
5.5mm x 2.5mm DC Output PlugInner: Positive(+)Outer: Negative(-)Compatible with 5.5×2.1mm interface
Package include: 1 X 12V 4A AC Power Adapter with US Plug1 X 5.5mm x 2.1mm Female connector(Gift)
Product advantages:
AC input voltage applied worldwide
High efficiency and low operating temperature
Soft-start current, effectively reduce the AC input impact
Short circuit protection, overload protection
Small size and light weight
100% full load burn-in test
Performance: with constant voltage, over-voltage, automatic recovery functions
How to choose?
1. Adapter connector(5.5×2.5mm DC Jack) matching with the device.
2. The output voltage(DC 12V) of the adapter must be the same as the rated input voltage of the load (mobile device), or within the acceptable voltage range of the load (mobile device), otherwise it may burn the load (mobile device).
3. The output current (4A) of the power adapter should be equal to or greater than the current of the load (mobile device) to provide sufficient power.
Application:
-This adapter will run most CCTV cameras etc that require up to 4000mA 12V power
-Security and surveillance devices: DVR, NVR, Cameras, IP Camera
-LED Modules, RGB and Monochromatic 5050 or 3528 LED Strip
-Wireless Router, HUB, Switches, etc other DC 12V input devices(Not more than 48W)
Output: DC 12V 4A / 4000mA 48W, 3.6 Ft Cable, DC interface size: 5.5mm x 2.5mm (and compatible with 5.5mm x 2.1mm)
It perfect replacement for 2A / 2.5A / 3A / 3.5A as amperage isnt forced. (If your previous Adaptor was less than 4A then this will be a perfect replacement as amperage is NOT Forced)
Third generation smart IC chip features: Short Circuit Protection, Overload Protection, Over Voltage Protection to protect your device
Free 5.5×2.1mm female connector easier for led strip or camera installation, save time and more securer cable connection.
What You Get: 1 * DC 12V 4A power supply and 5.5mm x 2.1mm Female connector (Gift), 2 Years warranty and friendly customer service. Please feel free to Contact us at any time.
Customers say
Customers find the charging adapter functional. It works well with TVs, 3D printers, and docking stations. However, opinions differ on its quality.
AI-generated from the text of customer reviews
8 reviews for 12V 4A Power Supply – COOLM AC 100-240V 50/60Hz to DC 12 Volt 4 amp 4Amp 48W Power Converter Charger 12V4A + 5.5×2.1mm DC Female Jack Socket for 12V LED Strip Lights CCTV Camera
Add a review

$12.99
Click, Buy, Cry –
Works well for 3D printer | Anycubic Photo Mono 4k
This power supply works well with my photo mono 4k 3d printer.
bumper –
12v 4A power Supply
Purchased this power supply for an ATM that I have at my bar. Works great, price is much cheaper then the power supply that one would purchase from the ATM company and so far it has out lasted the performance of the ATM’s original power supplies.
Manuel Solorzano –
Funciona bien
Funciona muy bien utilizado en una bocina inalámbrica de 12v y 4A, carga muy bien la baterÃa y también para el uso
Lee S. –
Replacement adapter for egg incubator.
I purchased this as a replacement power adapter for a Kebonnixs 12 egg incubator. I works perfectly.
Robert A. Fourt –
What happened to lighter plugs in cars.
I needed to add an LED light bar to a truck we are using on a job site. I found a great light bar that would easily plug into a cigarette lighter plug in the truck.WTF? New trucks have tons of USB ports, even an AC receptacle, but NO lighter plug.I did quite a bit of research and found this AC adapter that could be powered by the truck’s inverter and provide enough wattage to power the light.But what really sold me was the “pig tail” plug. This allowed me to simply remove the cig plug from the light bar and connect the leads to the pig tail plug. Easy peasy.
Igor Nikonov –
Good quality and meets its spec of 4A
This Power Supply meets its spec of 4A.I tried a few no-name Supplies from eBay, claiming to be 3A or 5A and they just died under 3A load in 30 minutes.This Supply was only a bit warm after 1 hour at 3A load.It’s currently in constant use with 3A load for about 3 weeks and performs fine.
Blake –
Good customer service
The charger was dead on arrival, which I assume is an anomaly based on other ratings. I contacted the seller and they quickly took care of it.
Deb K –
Great customer service
I ordered this for a fiber optic tree (12v 4a). When I received the power supply, I tried it and found the tree lit but did not turn. In my experience, all power supplies have been AC to DC. After re-examining the old power supply, I found it to be AC to AC. I contacted COOLM to see if they had the correct power supply. They said they didn’t have one, but had actually searched to find one for me. When they could not locate one, they gave me a full refund. COOLM went above and beyond to resolve my problem. Thanks COOLM.