Is there a UL Listing for this product?

Does not appear to be UL rated.

Is the 12v negative attached to the AC gorund?

No it is not connected, they are two separate sections. but depending on your application you can connect the negative terminal from the power supply to ground, as an example think of a car the negative terminal from the battery is connected to the chassis of the car and that is the ground reference for all the devices connected in the car.

How many strands of the alitove ws2811 12v led pixel can i operate out of this?

It’s a 60 watt power supply, so it depends on the wattage of your leds. Watts = volts X amps

What's Barrel Type? The average person doesn't have a micrometer to measure with; let alone if they don't have one to measure.

Get a micrometer on ebay! They're cheap and very worthwhile. Anyways this has 5.5mm OD, 2.1mm ID. A similar variation that this would not work with is the same 5.5mm OD but 2.5mm ID - this type of plug will usually have a yellow plastic insert on the male end, compared to a black insert on the 2.1mm ID plug sold here.

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ALITOVE DC 12V 5A Power Supply Adapter Converter Transformer 60W AC 100-240V Input with 5.5x2.5mm DC Output Jack for 5050 3528 LED Strip Module Light

ALITOVE DC 12V 5A Power Supply Adapter Converter Transformer 60W AC 100-240V Input with 5.5x2.5mm DC Output Jack for 5050 3528 LED Strip Module Light

Product ID: 38438571

Details

Amperage
5 Amps
Brand
ALITOVE
Color
12V 5A Power
Connector Type
Barrel
Included Components
Cord
Input Voltage
110 Volts (AC)

⚡12V DC stable output

🔋5A max current capacity

🛡️4-layer safety protection

$U1504

Duties & taxes included

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Power up like a pro — never settle for less than steady, safe, and smart energy!

PLUG PLAY CONVENIENCE - Includes a free female DC connector for easy, solder-free wiring—get your setup running faster and cleaner.
UNIVERSAL COMPATIBILITY - Works seamlessly with 5.5x2.5mm DC jacks and supports a wide range of devices from LED modules to CCTV cameras.
ROBUST 5 A CURRENT SUPPORT - Handles up to 5 amps, perfect for high-demand LED strips, 3D printers, and audio equipment without breaking a sweat.
COMPREHENSIVE SAFETY SUITE - Equipped with automatic overload, overvoltage, thermal cut-off, and short circuit protection for peace of mind.
POWER YOUR PROJECTS RELIABLY - Delivers a consistent 12V DC output with zero voltage fluctuations to keep your devices safe and efficient.

The ALITOVE DC 12V 5A Power Supply Adapter is a 60W transformer designed for stable and reliable power delivery to 12V devices with up to 5 amps current draw. Featuring a universal 100-240V AC input and a 5.5x2.5mm DC output jack, it supports a broad range of electronics including LED strips, 3D printers, and audio amplifiers. Built-in multi-layer safety protections ensure device longevity and user safety, while the included female DC connector enables quick, solder-free installation. Ideal for professionals seeking dependable power solutions with hassle-free setup.

Specifications

ASIN	B01GEA8PQA
Additional Features	Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection
Amperage	5 Amps
Best Sellers Rank	#1,396 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #21 in Electrical Adapters
Brand	ALITOVE
Built-In Media	Cord
Color	12V 5A Power Supply
Compatible Devices	LED Strips, 3D Printer, ham radio transceiver, CCTV cameras，car subwoofer amp, audio amplifier, wireless router, ADSL Cats, HUB
Compatible Phone Models	Universally compatible with 12v devices using a 5.5mm x 2.5mm DC power input and draw no more than 5A 60W
Compatible Power Plug Type	Type B - 3 pin (North American)
Connectivity Technology	DC Barrel Connector
Connector Type	Barrel Connector
Current	DC
Current Rating	5 Amps
Customer Reviews	4.5 4.5 out of 5 stars (4,468)
Enclosure Material	Other
Form Factor	Plug
Input Voltage	110 Volts (AC)
Item Weight	150 Grams
Main Power Connector Type	2 Pin
Manufacturer	Shenzhen Junchen Technology Co Ltd
Mfr Part Number	J200-12005000D
Model Number	J200-12005000D
Mounting Type	Tabletop Mount
Number of Items	1
Number of Power Levels	1
Output Current	5 Amps
Output Voltage	12 Volts (DC)
Portable	Yes
Power Plug	Type B - 3 pin (North American)
Power Source	DC
Specification Met	CCC
UPC	799619761098
Unit Count	1.0 Count
Voltage	240 Volts
Wattage	60 watts

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