New to this stuff. Went to Home Depot for a power cord wasn't sure which was sufficient enough. 13 amp 125volt or 15 amp 125volt?

Either cord will work - the unit has a rated output of 180 watts and is protected for overload. If you hate math - watts=volts x amps. 15 amps is for the output at 12 volts - 15 x 12 =180watts. On power side at 115/120v, the amperage will be significantly lower - 180watts/120volts = 1.5 amps. No grade credit given for this online math course.

what voltage dimmer would you recommend, so i can have 0 to 12 V 20A dc in the output please ? for 15m of led rolls.

LEDs are dimmed via PWM, not voltage. You would still use a 12v PWM dimmer

would one of these be acceptable for a peltier cooling power supply

As long as the voltage and amps match. I’d pare the acceptable cooler amps down to 70% to be safe.

Can this power supply run continuously? Does it need a cooling fan to do so?

I believe it will run continuously at the rated output. At or below the rated output, I've had no requirement for an external fan. The unit appears to be protected with overload protection based on rated output. One note, my unit is not mounted in a air-tight enclosure but utilized as a bench-top unit.

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ALITOVE DC 12V 20A 240W Power Supply Transformer Switch AC 110V / 220V to DC 12V 20amp Switching Adapter Converter LED Driver for LED Strip Light CCTV Camera Security System

ALITOVE DC 12V 20A 240W Power Supply Transformer Switch AC 110V / 220V to DC 12V 20amp Switching Adapter Converter LED Driver for LED Strip Light CCTV Camera Security System

Product ID: 58379437

Details

Brand
ALITOVE
Current Rating
20 A
Mounting Type
Wall Mount
Power Source
Dc 12v
Product Dimensions
4.33"D x x

⚡240W max power output

🔌3 independent output channels

🛡️5-layer safety protection

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Description

⚡ Power your projects with precision and peace of mind!

WHISPER QUIET COOLING - Fanless aluminum case with cellular design ensures silent operation and efficient heat dissipation.
BUILT IN SAFETY SHIELD - Automatic overload, overvoltage, thermal, and short-circuit protections keep your gear and workspace secure.
POWERHOUSE PERFORMANCE - Delivers a robust 240W output with stable DC 12V at 20A max, perfect for demanding setups.
PRECISION VOLTAGE CONTROL - Adjust output voltage ±10% (10.8V–13.2V) to perfectly match your device’s power needs.
TRIPLE CHANNEL FLEXIBILITY - Three independent 10A channels let you power multiple devices simultaneously without compromise.

The ALITOVE DC 12V 20A 240W Power Supply is a versatile, high-capacity switching adapter designed for professional-grade LED strips, CCTV systems, and more. Featuring three independent output channels, advanced safety protections, and silent fanless cooling, it ensures stable, adjustable voltage delivery in a compact, durable aluminum case. Ideal for millennial managers seeking reliable, efficient power solutions that keep their tech running flawlessly.

Specifications

ASIN	B078RTV41D
Brand Name	ALITOVE
Current Rating	20 A
Customer Reviews	4.6 4.6 out of 5 stars (634)
Included Components	12V 20A Power Supply
Item Dimensions D x W x H	4.33"D x 7.87"W x 1.96"H
Item Weight	0.6 kg
Manufacturer	ALITOVE
Maximum Frequency	60 hertz
Minimum Frequency	50 hertz
Model	AL12V20AT
Mounting Type	Wall Mount
Part Number	AL12V20AT
Power Source	Dc 12v
Specification Met	CCC, FCC
UPC	702455811674
Unit Count	1 Count

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¥9972

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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TrustScore 4.5 | 7,300+ reviews

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