Q1: Will these bulbs fit my boat light fixture?

A: These bulbs are designed for standard 31mm / 1.25 inch festoon sockets. Please measure your original bulb length before purchasing. If your stock bulb is 31mm, these can be used as direct replacements.

Q2: What voltage do these marine LED bulbs work with?

A: These bulbs are designed for DC 12V systems. They are commonly used for boat anchor lights, masthead lights, stern lights, bow lights, all-round lights and running lights.

Q3: What should I do if the bulb does not light up after installation?

A: Please remove the bulb, flip it 180 degrees, and reinstall it. These LED festoon bulbs are polarity sensitive, so reversing the direction usually solves the issue.

Q4: Are these bulbs bright enough for boat navigation lights?

A: Yes. Each bulb uses 24 pieces of 3014 SMD LED chips and produces 6500K pure white light with up to 300 lumens. Please make sure your fixture and local boating requirements are compatible with LED replacement bulbs.

Q5: Is installation difficult? Do I need extra wiring?

A: No extra wiring or modification is needed. These are plug-and-play direct replacement bulbs. Simply remove the old 31mm festoon bulb and install the new LED bulb.

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31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS

31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS

Product ID: 75272383

Details

Auto Part Position
Unknown
Brand
Shangyuan
Color
Silver
Lens Color
White
Light Source Type
LED
Special Feature
Easy

💡300 lumens super bright

🔄180° flip polarity fix

🔋12V low power, energy-saving

$20.66

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Description

⚓ Light up your night voyage with effortless brilliance!

UNIVERSAL 31 MM FIT - Perfect direct replacement for standard festoon sockets.
ULTRA LONG LIFESPAN - Up to 50,000 hours of reliable marine lighting.
GUARANTEED CONFIDENCE - Backed by a 1-year warranty for worry-free boating.
PLUG PLAY SIMPLICITY - No wiring hassle—just swap your old bulbs and go.
BRILLIANT 360 ILLUMINATION - Maximize your boat’s visibility with full-circle brightness.

The Shangyuan 31mm Marine LED Festoon Bulbs deliver 300 lumens of bright, 360-degree white light at 12V with ultra-low power consumption. Designed for easy plug-and-play installation, these bulbs fit standard 31mm festoon sockets and feature a polarity-flip design to ensure instant lighting. With a lifespan of up to 50,000 hours and a 1-year warranty, they are the perfect upgrade for navigation, anchor, and masthead lights on boats, yachts, kayaks, and more.

Specifications

Additional Features	Easy Installation
Asin	B07G3G95W5
Auto Part Position	Unknown
Automotive Fit Type	Universal Fit
Best Sellers Rank	#60,192 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #67 in Boat Navigation Lights
Brand Name	Shangyuan
Color	Silver
Compatible With Vehicle Type	Boat
Customer Reviews	4.6 4.6 out of 5 stars (1,388) 4.6 out of 5 stars
Item Weight	0.27 g
Lens Color	White
Lens Material	Polycarbonate or Acrylic
Light Source	LED
Manufacturer	Shangyuan
Manufacturer Part Number	202209021149
Model Number	4350151329
Number Of Items	2
Specific Uses For Product	Boat Lights
Voltage	12 volts
Wattage	1.8 watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$20.66

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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