--- product_id: 152619167 title: "31mm LED Bulbs" brand: "marsauto" price: "€ 32.40" currency: EUR in_stock: true reviews_count: 13 category: "Marsauto" url: https://www.desertcart.fi/products/152619167-31mm-led-bulbs store_origin: FI region: Finland --- # 1.9W ultra low power 300 lumens super bright Plug & play no polarity 31mm LED Bulbs **Brand:** marsauto **Price:** € 32.40 **Availability:** ✅ In Stock ## Summary > 💡 Light up your ride with brilliance and ease — never settle for dull again! ## Quick Answers - **What is this?** 31mm LED Bulbs by marsauto - **How much does it cost?** € 32.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/152619167-31mm-led-bulbs) ## Best For - marsauto enthusiasts ## Why This Product - Trusted marsauto brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Fitment:** Compatible with multiple festoon sizes (31mm-33mm) and OEM equivalents like DE3175, DE3021, DE3022 for seamless upgrades. - • **Energy-Smart Design:** Consumes only 1.9 watts per bulb, saving power without compromising on brightness—eco-friendly and wallet-friendly. - • **Brilliant 300LM Output:** Illuminate your car interior and exterior with crisp, daylight-white 6500K brightness that turns heads. - • **Effortless Installation:** No polarity hassle—just plug and play with built-in CANbus decoder to eliminate flicker and dashboard errors. - • **Long-Lasting Durability:** Up to 50,000 hours lifespan with aviation aluminum heat dissipation for stable, cool performance. ## Overview The Marsauto DE3175 31mm Festoon LED Bulbs deliver a powerful 300 lumens of crisp 6500K white light with ultra-low 1.9W power consumption. Designed for easy plug-and-play installation with no polarity concerns and built-in CANbus decoder, these bulbs fit a wide range of vehicles and applications including dome, map, license plate, and RV exterior lights. Featuring aviation aluminum heat dissipation and a lifespan of up to 50,000 hours, they offer reliable, flicker-free illumination that enhances both safety and style. ## Description Product description Marsauto 31mm DE3175 Festoon LED Bulbs ABOUT US Marsauto focuses on manufacturing convenient, energy-saving, and long-life lighting and auto parts products. We always pay attention to road safety and strive to create a more secure and comfortable driving experience. Since established, we have taken into consideration the needs of consumers, strictly controlled the quality of the products, and gained public trust. We have more than 3 million consumers in North America, Europe and Japan. How to Pick the Right Bulb Size? Select your vehicle model in the filter system of the product page to double check the fit. Refer to the "Notes". "Notes": For Map Light Bulb,for License Plate Light Bulb means our bulb fits your car as Map Light Bulb/License Plate Light Bulb and not suitable for other locations. Series: M1S Voltage: DC-12V Power: 0.8W per bulb Chipsets：2835-SMD Lumen: 480LM for each bulb Color Temperature: 6000K White Lifespan: > 50,000 Hours Polarity: Non-polarity 1:1 Design with Original Halogen Bulb Just plug and play, super easy to install, no modifications, fit for 31mm, 32mm, 33mm, DE3175, DE3021, DE3022, 3021, 3022, 3175... Fast Heat Dissipation 3 times heat dissipation by perfect curve-design and aviation aluminum material help to heat dissipation. Smart IC Driver, Steady Current Built-in smart IC driver, steady current protect circuit and no short circuit, performace is more stable and powerful. Application: used as different postion in car,interior map lights, or dome lights, or license plate light, or parking lights, or corner lights, or trunk light, or side marker lights, or side door courtesy, or cargo light, or trunk lights etc. It depends on the vehicle. Review: new HIDs are a must!! Makes the R/T look so much better! - 100x’s better and BRIGHTER. Cannot wait to see them at night. Very satisfied so far however cannot speak to the durability of them but impressed so far. Plug and play and no flicker so far. Absolute pain in the butt to install the headlights just because tiny little boy hands are needed but I got it eventually. The pic with the yellow circle is the new vs factory HID. Review: Works well once you get it in - These lights work really well and were plug and play. The light is very bright and seems good so far. The install on a GS350 was not easy due to limited space, but it worked out. ## Features - Compatibility: DE3175 led bulbs fit for 31mm 32mm 33mm DE3175, DE3021, DE3022, 3021, 3022, 3175 bulbs RV Exterior Lighting - 31mm festoon led bulbs: chipsets: 2835SMD chip; color temperature: 6500K; lifespan: up to 50000 hours; lumens: 300LM ; watts: 1.9W per bulb; dimension: 1.2 inch, 31mm, 32mm - Non polarity: DE3175 31mm led bulbs is no polarity, no need to match the polarity, just plug and play, super easy to install. Built-in CANbus decoder to avoid dashboard error or flickering - Heat dissipation: perfect curve design and aviation aluminum material help to heat dissipation, stable input current don't lead a short circuit and prevent fire - Tips: RV Exterior Lighting DE3175 led bulb is no hassle on replace or exchange your stock bulb ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QYST678 | | Auto Part Position | Center | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #1,217 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Dome Light Bulbs | | Brand | Marsauto | | Brand Name | Marsauto | | Brightness | 200 Lumen | | Color | White | | Color Temperature | 6500 Kelvin | | Customer Reviews | 4.6 out of 5 stars 9,291 Reviews | | Fit Type | Vehicle Specific Fit | | Included Components | 4 LED light bulbs | | Item Type Name | Marsauto fog bulb 20260527 | | Light Output Maximum | 200 Lumens | | Light Source Type | LED | | Manufacturer | Marsauto | | Manufacturer Part Number | AM1S31MMW-4P-JC | | Manufacturer Warranty Description | 1 year | | Model Number | 41mm | | OEM Equivalent Part Number | 32mm 33mm 34mm 35mm DE3021 DE3022 DE3023 DE3175 3021 3022 3528 3175 6428 6430 7065 6614 6614F 6641 12818 12842 30922 F30-WHP TS-14V1CP | | Operating Life | 50000 Hours | | Package Quantity | 1 | | Specific Uses For Product | RV Exterior Lighting | | UPC | 786784146355 | | Unit Count | 4 Count | | Voltage | 12 Volts | | Wattage | 1.9 watts | ## Product Details - **Brand:** Marsauto - **Brightness:** 200 Lumen - **Color Temperature:** 6500 Kelvin - **Light Source Type:** LED - **Specific Uses For Product:** RV Exterior Lighting ## Images ![31mm LED Bulbs - Image 1](https://m.media-amazon.com/images/I/51XWWVSWvfL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ new HIDs are a must!! Makes the R/T look so much better! *by J***E on May 19, 2026* 100x’s better and BRIGHTER. Cannot wait to see them at night. Very satisfied so far however cannot speak to the durability of them but impressed so far. Plug and play and no flicker so far. Absolute pain in the butt to install the headlights just because tiny little boy hands are needed but I got it eventually. The pic with the yellow circle is the new vs factory HID. ### ⭐⭐⭐⭐⭐ Works well once you get it in *by S***E on April 22, 2026* These lights work really well and were plug and play. The light is very bright and seems good so far. The install on a GS350 was not easy due to limited space, but it worked out. ### ⭐⭐⭐⭐⭐ Good value *by M***I on March 10, 2026* These lights were a perfect fit! I have had a lot of experience with inexpensive LED lights that seem to be a smaller or larger than the socket not these, they were a direct fit for my application. Lights are bright and after months of use still I have had no issues. The built in heat sync keeps them cool as advertised. Would recommend! Will be purchasing more soon! ## Frequently Bought Together - Marsauto DE3175 LED Bulb 31mm Festoon LED Bulbs White 1.2inch Super Bright 300LM 6500K 2835SMD 3175 DE3021 3022 3021 for Car Interior Dome Map License Plate Lights, count 4 (Pack of 1) - Marsauto 194 LED Bulb 6000K White 168 T10 2825 W5W 5SMD Replacement Bulbs for Car Dome Map Door Courtesy Side Marker Reading Glove Box License Plate Lights (Pack of 10) - Marsauto 194 LED Bulbs T10 168 192 2825 W5W Replacement Bulbs for Interior Dome Map License Plate Lights Door Courtesy Trunk Lamp 480LM 6000K Xenon White（Pack of 10） --- ## 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.fi/products/152619167-31mm-led-bulbs](https://www.desertcart.fi/products/152619167-31mm-led-bulbs) --- *Product available on Desertcart Finland* *Store origin: FI* *Last updated: 2026-07-29*