Is the built in fan supposed to start and stop automatically? Mine never stops!

As soon as your power supply is energized, the built-in fan will turn on to ensure stable voltage and current output for cooling.

is there a user manual?

There a piece of paper that tells you what is what as far as the terminals and the voltage adjustment. I bought 2 of these and sent both back. If your wanting much more that 12.4 get something else. These won’t go past that. I needed 13.4 minimum for 2 way radio.

Will it work for testing 12 volt electric motors? motors?

You can test anything that is 12 volt that requires less than 40 A

I have a mobile cb radio i want to convert to a base home station. attached to it is an italy kl203. will this be sufficient to power both?

I really can't answer your question since I don't use a CB, I use it to power my HPA compressor and it does the job of providing 110v to the compressor. The power supply is inexpensive, you might want to order one and if it doesn't work you can always return it.

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DC Power Supply 12V 50A AC Converter DC Adapter Universal Regulated Switching Power Supply 12Volt 600W Power Supply for CCTV Radio Computer Project

Product ID: 680743985

Details

Amperage
50 Amps
Brand
GESD
Colour
White
Item weight
0.72 Kilograms
Material
Metal

⚡600W max power output

🔄Dual AC input 110V/220V switchable

🛡️Multi-layer surge & thermal protection

HK$1039

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your projects like a pro — never settle for less!

COOL QUIET OPERATION - Engineered metal casing with optimized ventilation ensures low temperature rise and whisper-quiet performance.
POWERHOUSE PERFORMANCE - Delivers a robust 12V 50A output, powering your projects with unwavering 600W strength.
ROCK SOLID RELIABILITY - Built-in protections guard against short circuits, overloads, and overheating for peace of mind 24/7.
VERSATILE APPLICATION READY - Perfect for CCTV, radio, LED lighting, and computer projects—join the pros who trust GESD’s precision power.
UNIVERSAL VOLTAGE FLEXIBILITY - Seamlessly switch between 110V and 220V inputs to match your regional power standards without hassle.

The GESD DC Power Supply is a universal regulated switching adapter delivering a stable 12V 50A output at 600W max power. It features a switchable AC input voltage (110V/220V), a rugged metal enclosure with efficient heat dissipation, and comprehensive surge, overload, and thermal protections. Ideal for professional-grade CCTV, radio, LED lighting, and computer applications, it ensures consistent voltage with low noise and high reliability, backed by a 2-year warranty and responsive 24/7 support.

Specifications

ASIN	B09NJLNYKH
Amperage	50 Amps
Best Sellers Rank	#165,848 in Computers ( See Top 100 in Computers ) #1,642 in Computer Power Supplies #7,485 in Electrical Power Accessories
Brand	GESD
Color	White
Customer Reviews	4.2 4.2 out of 5 stars (417)
Enclosure Material	Metal
Form Factor	Mini ITX
Item Dimensions	11.4 x 21.6 x 5 centimeters
Item Weight	0.72 Kilograms
Manufacturer	GESD
Maximum Power	600 Watts
Mfr Part Number	DC 12V 50A 600W Power Supply Adapter
Model Number	DC 12V 50A 600W Power
Number of Items	1
Number of Packs	1
Output Current	50 Amps
Output Voltage	12 Volts
Output Wattage	600 Watts
Specification Met	CCC, CE, FCC, RoHS
UPC	768432203283

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