--- product_id: 280154635 title: "Shangyuan 31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS" brand: "shangyuan" price: "$24.30" currency: USD in_stock: true category: "Shangyuan" url: https://www.desertcart.us/products/280154635-shangyuan-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor store_origin: US region: United States of America --- # Waterproof for marine durability 300 Lumens super bright output Energy-saving 12V @ 0.15A power draw Shangyuan 31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS **Brand:** shangyuan **Price:** $24.30 **Availability:** ✅ In Stock ## Summary > ⚓ Light up your voyage with brilliance and efficiency! ## Quick Answers - **What is this?** Shangyuan 31mm Marine LED Festoon Bulbs for Navigation, Boat Anchor & Mast Masthead Lights, Super Bright 12V 2PCS by shangyuan - **How much does it cost?** $24.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/280154635-shangyuan-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor) ## 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 - • **Long-Lasting Durability:** Up to 50,000 hours of reliable marine-grade lighting—set it and forget it. - • **Energy-Efficient Performance:** Low power consumption at just 1.8W keeps your battery charged longer on every trip. - • **Perfect Fit for 31mm Fixtures:** Designed to seamlessly replace standard 31mm festoon bulbs without hassle. - • **Waterproof & Weather-Resistant:** Built to withstand harsh marine environments, ensuring consistent performance rain or shine. - • **Ultra-Bright Navigation Lighting:** Illuminate your boat with 300 lumens of crisp, white LED brilliance for safer night voyages. ## Overview The Shangyuan 31mm Marine LED Festoon Bulbs deliver 300 lumens of bright, energy-efficient lighting at 12V, designed specifically for boat navigation, anchor, and masthead lights. Featuring waterproof construction and a long lifespan of up to 50,000 hours, these bulbs offer a reliable, universal fit replacement for 31mm fixtures, perfect for enhancing marine safety and style. ## Description International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Features - 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. - Energy-saving, low temperature, low power consumption, Long-lasting Life up to 50,000 Hours. - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07G3G95W5 | | Additional Features | Waterproof | | Auto Part Position | Unknown | | Automotive Fit Type | Universal Fit | | Brand Name | Shangyuan | | Color | Silver | | Compatible with Vehicle Type | Boat | | Customer Reviews | 4.6 4.6 out of 5 stars (1,331) | | Is Assembly Required | No | | Item Weight | 0.01 Ounces | | Lens Color | White | | Lens Material | Polycarbonate or Acrylic | | Light Source | LED | | Manufacturer | Shangyuan | | Manufacturer Part Number | 202209021149 | | Model Number | 4350151329 | | Number of Items | 2 | | Set Name | 2-pack | | Specific Uses For Product | Boat Lights | | Voltage | 12 Volts | | Wattage | 1.8 watts | ## Product Details - **Brand:** Shangyuan - **Colour:** Silver - **Light source type:** LED - **Specific uses for product:** Boat Lights - **Vehicle service type:** Boat ## Images ![Shangyuan 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) ![Shangyuan 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) ![Shangyuan 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) ![Shangyuan 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) ![Shangyuan 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.us/products/280154635-shangyuan-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor](https://www.desertcart.us/products/280154635-shangyuan-31mm-marine-led-festoon-bulbs-for-navigation-boat-anchor) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-18*