I can hook this directly to 12v in my travel trailer outside

Very rarely is a 12v auto/rv battery at exactly 12v. You could use a zener diode to protect from overvolatage and let undervoltage fall where it may. A buck/boost converter would provide the best consistency in light though.

What is the manufacturer's recommend maximum number of 5M strips that can be connected together in series?

Working current per meter is 0.4A so for a full 5M strip you will need a minimum power source of 2A to avoid any chance of overheating or worst. For 5 strips in series you would need a 10A current, source of 12Volts

Can u use this for my boat trailer as underglow? And is there an extension cord I can use for this as well

you can use for boat trailer, but will not take an extension cord. We have on our jet ski and have had no problems with them.

I want to connect (3) 5 meter Strips all together. What type of power supply do i need and can this be done?

Are you planing on connecting the strips in series or parallel? In series your resistance and therefor your current draw would triple. So you will need a power supply with the same voltage larger current rating. Parallel can use same power supply because resistance and therefor current draw will be less than half of one strip alone.

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Waterproof Led Strip Lights SMD 3528 16.4 Ft (5M) 300leds 60leds/m White Flexible Tape Lighting Tape Lights for Boats, Bathroom,Mirror,Ceiling and Outdoor (cold white), Power Supply not Included

Product ID: 24987769

Details

Brand
XINKAITE
Color
White
Indoor/Outdoor Usage
Indoor Outdoor
Light Color
Cool White
Light Source Type
LED
Occasion
Holidays

💧IP65 Waterproof for indoor/outdoor

🔆300 ultra-bright SMD 3528 LEDs

✂️Cuttable every 3 LEDs for custom length

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Description

💡 Light up your life—wherever, whenever, however!

SAFE COOL TO TOUCH - Low 12V voltage with minimal heat output ensures safe, child-friendly illumination without compromise.
CONFIDENCE IN EVERY GLOW - Backed by a 2-year risk-free warranty, lighting your world has never been more worry-free.
TAILORED AMBIANCE ON DEMAND - Easily cut and link strips every 3 LEDs to fit any space or mood—flexibility that matches your lifestyle.
SEAMLESS INDOOR OUTDOOR GLOW - IP65 waterproof rating means your lighting stays flawless rain or shine, perfect for boats, bathrooms, and patios.
EFFORTLESS PEEL STICK INSTALLATION - Strong self-adhesive backing lets you upgrade your space in minutes—no tools, no hassle.

The XINKAITE Waterproof LED Strip Light delivers 16.4 feet of ultra-bright, cool white illumination with 300 SMD 3528 LEDs. Rated IP65 waterproof, it’s designed for versatile indoor and outdoor use, including boats and bathrooms. Cuttable every 3 LEDs for custom lengths, it operates safely at 12V with low heat output. Easy peel-and-stick installation and a 2-year warranty make it a reliable, stylish lighting upgrade for any modern space.

Specifications

ASIN	B018YPDH0C
Additional Features	Waterproof
Best Sellers Rank	#441,957 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #137 in Rope Lights
Brand Name	XINKAITE
Bulb Shape Size	54SMD
Color	White
Color Temperature	5750 Kelvin
Control Method	App
Controller Type	Button Control
Customer Reviews	4.2 4.2 out of 5 stars (1,505)
Form Factor	Tape
Included Components	LED strip light, Strip connectors
Indoor Outdoor Usage	Indoor, Outdoor
Ingress Protection Code Rating	IP65
Item Length	16.4 Feet
Light Color	Cool White
Light Source Type	LED
Manufacturer	XINKAITE
Manufacturer Part Number	DTXW004-WH
Material Type	Plastic, Silicone
Model Number	DTXW004-WH
Number of Items	1
Number of Light Sources	300
Occasion	Holidays
Power Source	Corded Electric
Product Style	Modern
Theme	Indoor
UPC	712096720938
Unit Count	16.4 Feet
Voltage	12 Volts
Water Resistance Level	Waterproof
Wattage	24 watts

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87.94 DT

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In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

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