--- product_id: 75272383 title: "31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS" brand: "shangyuan" price: "R406" currency: ZAR in_stock: true url: https://www.desertcart.co.za/products/75272383-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor-mast store_origin: ZA region: South Africa --- # 300 lumens super bright 180° flip polarity fix 12V low power, energy-saving 31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS **Brand:** shangyuan **Price:** R406 **Availability:** ✅ In Stock ## Summary > ⚓ Light up your night voyage with effortless brilliance! ## Quick Answers - **What is this?** 31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS by shangyuan - **How much does it cost?** R406 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/75272383-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor-mast) ## Best For - shangyuan enthusiasts ## Why This Product - Trusted shangyuan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal 31mm 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. ## Overview 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. ## Description Shangyuan creates marine LED lighting for boaters who need reliable visibility, easier installation, and better nighttime on the water. We design lighting products around real boating needs: better visibility, simple installation for fishing and relaxing after dark. Shangyuan started with a simple goal: make boat lighting easier for everyday boat owners. Many customers need practical lights for night fishing, docking, cabins, decks, trailers, kayaks, and pontoons. We focus on simple, useful LED lighting solutions. Our products are designed around real marine use. We focus on practical brightness, easier installation, useful accessories, and common boat applications. We enjoy helping boat owners make their time on the water safer, brighter, and more enjoyable. Shangyuan focuses on practical LED lighting solutions for boats, kayaks, pontoons, trailers, cabins, decks, and outdoor marine use. From navigation lights to interior lights and wiring accessories, our goal is simple: help customers upgrade their boats with products that are easy to install, useful in real scenes, and built for everyday boating needs. 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. ## Features - OUR ADVANTAGE: Buy with confidence, we provide "ONE YEAR" warranty guaranteed! (Light Range: 360 degree illumination). If the LED does not light up, simply flip it 180 degrees (reverse the polarity) - Package included: 2pcs of Boat Festoon LED bulbs, Voltage: DC 12V, Output Power: 12V @ 0.15A, Flux:300Lumens, Width: 8.5mm(0.34inch), Length: 31mm(1.25inch). Please confirm the length of your stock bulb is 31mm(1.25inch) before purchasing. - Application: Fit for Anchor Lights, Bow Lights, All Round Lights, Stern Lights, Mast Lights, Masthead Lights, Running lights etc. Common use for Pontoon Boat Sailboart Yacht Kayak Vessel Barge Ship, etc. - Easy to install, no any modification/wiring need, direct replace, just plug and play. (Please flip the bulb horizontally if it does not light up to match the + and - polarity.) - Energy-saving, low temperature, low power consumption, Long-lasting Life up to 50,000 Hours. ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Product Details - **Auto Part Position:** Unknown - **Brand:** Shangyuan - **Color:** Silver - **Lens Color:** White - **Light Source Type:** LED - **Special Feature:** Easy Installation - **Specific Uses For Product:** Boat Lights - **Vehicle Service Type:** Boat - **Voltage:** 12 volts - **Wattage:** 1.8 watts ## Images ![31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS - Image 1](https://m.media-amazon.com/images/I/61vPZ5znhCL.jpg) ![31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS - Image 2](https://m.media-amazon.com/images/I/71681l274TL.jpg) ![31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS - Image 3](https://m.media-amazon.com/images/I/71CNOQ3eaJL.jpg) ![31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS - Image 4](https://m.media-amazon.com/images/I/71qGiQX-TGL.jpg) ![31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS - Image 5](https://m.media-amazon.com/images/I/71y0Hk+hHOL.jpg) ## Questions & Answers **Q: Q1: Will these bulbs fit my boat light fixture?** A: 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. **Q: Q2: What voltage do these marine LED bulbs work with?** A: 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. **Q: Q3: What should I do if the bulb does not light up after installation?** A: 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. **Q: Q4: Are these bulbs bright enough for boat navigation lights?** A: 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. **Q: Q5: Is installation difficult? Do I need extra wiring?** A: 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. ## Frequently Bought Together - Shangyuan 31mm Marine LED Festoon Bulb for Navigation Light, Boat Light Bulbs for Boat Anchor Light, Boat Navigation Lights, Mast Masthead Light, Super Bright 12 Volt Bulbs for Boat Lights 2PCS - 906 LED 3Watt Bulbs T10 Wedge Base Marine Boat Light Bulb, 6000K White 12V 24V Navigation Lights for Anchor Light Stern Light All-Round Light Mast Masthead Light Pontoon Boat Sailboat Kayak 2PCS --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/75272383-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor-mast](https://www.desertcart.co.za/products/75272383-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor-mast) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-27*