Will is supply power to illuminate an underwater Led strip beneath a Kayak?

As long as your LEDs draw 20 watts or less. Your power supply should be sized at 20% higher wattage than what you're connecting it to. If you'll be using 20 watts, then: 20w x 20%(.2)= 4w; 20w + 4w= 24 watt supply needed for 20 watt consumption.

Will this work for these lights?

it's a 12 volt power supply for the Led Strip, Led string lights, Wireless Router, ADSL Cats, HUB, Switches, Security Cameras, Audio/Video Power Supply

Are these instant on or does a take a few seconds to power the device?

I use this power supply to provide power to the digital signal strength meter in my motor home. While I have not observed any delay in powering up my signal strength meter, I cannot say if it takes one second to power up or several seconds.

12v 2a Power Supply Pack Of 2 | Desertcart Hong Kong

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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HK$332

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

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Description

🔋 Power up your workspace with confidence and style!

UNIVERSAL COMPATIBILITY - Perfect for LED strips, CCTV cameras, external HDDs, monitors, and more under 2A load.
EXTENDED 6 2 FT POWER CORD - Say goodbye to cramped setups—place your gear exactly where you want it.
TOOL FREE WIRING CONNECTOR - Quick screw-on terminals mean no soldering, no fuss—plug and play like a pro.
ETL LISTED SAFETY ASSURANCE - Built-in protections against overvoltage, overcurrent, short circuits, and overheating keep your devices safe and sound.
RELIABLE 12 V 2 A POWER OUTPUT - Delivers a consistent 24W to keep your devices running smoothly without hiccups.

The SANSUN 12V 2A Power Supply Adapter is a versatile, ETL-listed AC to DC converter delivering stable 24W output with a 6.2ft cord and easy screw terminal connectors. Ideal for powering LED strips, cameras, external HDDs, and other devices under 2A, it combines safety, convenience, and broad compatibility in a sleek, lightweight design.

Specifications

ASIN	B01HCRUGPW
Amperage	2 A
Brand	SANSUN
Built-In Media	Power Adapter, Female Terminal Connector
Color	Black
Compatible Devices	AC-DC Converters
Compatible Phone Models	LED Strips, DVD player, ham radio transceiver, CCTV cameras, car subwoofer amp, audio amplifier, wireless router, ADSL Cats, HUB Compatible Phone Models LED Strips, DVD player, ham radio transceiver, CCTV cameras, car subwoofer amp, audio amplifier, wireless router, ADSL Cats, HUB See more
Compatible Power Plug Type	Type A - 2 pin (North American)
Connectivity Technology	5.5x2.5mm DC Jack
Connector Type	Barrel Connector
Current	DC
Current Rating	2 A
Customer Package Type	FFP
Customer Reviews	4.5 out of 5 stars 1,850 Reviews
Enclosure Material	Copper, Plastic
Form Factor	Stand
Frequency Range	50/60 Hertz
Included Components	Power Adapter, Female Terminal Connector
Input Voltage	120 volts_of_alternating_current
Item Weight	8 ounces
Main Power Connector Type	2 Pin
Manufacturer	SANSUN
Mfr Part Number	YCZX-1202000
Model Name	12V2A PLUG
Model Number	YCZX-1202000
Mounting Type	Wall Mount
Number of Items	1
Number of Power Levels	2
Output Current	2 A
Output Voltage	12 volts_of_direct_current
Plug Type	Type A - US style
Power Plug	Type A - 2 pin (North American & Japanese)
Power Source	Corded Electric
Special Feature	Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection, Lightweight Design Special Feature Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection, Lightweight Design See more
Special Features	Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection, Lightweight Design
Specification Met	ETL, FCC
UPC	761710675215
Unit Count	2 Count
Voltage	12 volts
Warranty Description	1 year warranty
Wattage	24 watts

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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HK$332

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.