--- product_id: 3295063 title: "Thunderbolt USB Taillight" brand: "serfas" price: "10281 kr" currency: ISK in_stock: true url: https://www.desertcart.is/products/3295063-thunderbolt-usb-taillight store_origin: IS region: Iceland --- # 35 lumens ultra-bright output IPX6 water-resistant silicone body 3.5-hour USB rapid recharge Thunderbolt USB Taillight **Brand:** serfas **Price:** 10281 kr **Availability:** ✅ In Stock ## Summary > ⚡ Light up your ride, own the night! ## Quick Answers - **What is this?** Thunderbolt USB Taillight by serfas - **How much does it cost?** 10281 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/3295063-thunderbolt-usb-taillight) ## Best For - serfas enthusiasts ## Why This Product - Trusted serfas brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tailored Safety Modes:** Four versatile modes including high beam, low beam, and two flash settings to match your ride. - • **Weatherproof Confidence:** Durable IPX6-rated water-resistant silicone body keeps your light shining through rain or shine. - • **Eco-Friendly Power Boost:** USB rechargeable battery powers up fully in just 3.5 hours—ditch disposable batteries forever. - • **Brilliant Visibility, Anytime:** 35 lumens of pure red LED light ensures you're seen from afar, day or night. - • **Seamless Mounting Flexibility:** Unique rear seat mount options for a sleek, secure fit that complements your bike’s style. ## Overview The Serfas Thunderbolt USB Taillight delivers cutting-edge safety with 35 lumens of bright red LED light, powered by a fast 3.5-hour USB rechargeable Lithium Polymer battery. Featuring a water-resistant silicone body and multiple flash modes, it offers durable, versatile visibility for cyclists who demand style and security on every ride. ## Description Product Description Serfas' Thunderbolt Taillight gives you style and safety in one high-powered and affordable package. Being seen on your bike at night never looked so good until Serfas' Thunderbolt Taillight hit the scene. This USB rechargeable gem comes with 35 lumens of firepower while giving riders' several different rear facing mounting options. The 30 micro-LED strip will let your presence be known to cars and bikes alike. The rechargeable Lithium Polymer battery will have you saying good bye to buying additional batteries and hello to saving the earth and all your hard earned money. Charge up, light up and get riding safely with the Thunderbolt. From the Manufacturer Serfas' Thunderbolt Taillight gives you style and safety in one high-powered and affordable package. Being seen on your bike at night never looked so good until Serfas' Thunderbolt Taillight hit the scene. This USB rechargeable gem comes with 35 lumens of firepower while giving riders' several different rear facing mounting options. The 30 micro-LED strip will let your presence be known to cars and bikes alike. The rechargeable Lithium Polymer battery will have you saying good bye to buying additional batteries and hello to saving the earth and all your hard earned money. Charge up, light up and get riding safely with the Thunderbolt. ## Features - The industry's most technologically advanced safety lights - All lights are robs compliant and all testing is done in house - More efficient leds & high quality lenses to increase brightness & Clarity - Produces 35 lumens of pure red light - USB rechargeable light, that fully charges in 3.5 hours - Features 30-mini LED strip - Features a water resistant silicone body and unique mounting options - Modes: high beam, low beam and two flash modes Run times: 1.75 hours (high beam); 3 hours (low beam); 7 hours (high blink); 9.5 hours (low blink) ## Technical Specifications | Specification | Value | |---------------|-------| | Color | Black | | Brand | Serfas | | Material | Silicone | | Power Source | Battery Powered | | Water Resistance Level | Water Resistant | | Item Weight | 0.01 Ounces | | Mounting Type | Seat Mount | | Number of settings | 4 | | Brightness | 35 lumen | | Auto Part Position | Rear | | International Protection Rating | IPX6 | | Number of Pieces | 1 | | Manufacturer | Serfas | | UPC | 713835022993 | | Global Trade Identification Number | 00713835022993 | | Item Package Dimensions L x W x H | 5.91 x 4.65 x 1.73 inches | | Package Weight | 0.1 Kilograms | | Item Dimensions LxWxH | 8 x 4.75 x 1.75 inches | | Brand Name | Serfas | | Suggested Users | All Ages, Unisex | | Part Number | UTL-6BK | ## Product Details - **Color:** Black - **Brand:** Serfas - **Material:** Silicone - **Power Source:** Battery Powered - **Water Resistance Level:** Water Resistant - **Item Weight:** 0.01 Ounces - **Mounting Type:** Seat Mount - **Number of settings:** 4 - **Brightness:** 35 lumen - **Auto Part Position:** Rear ## Images ![Thunderbolt USB Taillight - Image 1](https://m.media-amazon.com/images/I/51iqZki+0EL.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - Serfas Thunderbolt USB Taillight - Serfas Universal Handlebar Mount for Headlights UNI-BRKT - Serfas E-Lume 1000 Bike Light Bicycle Headlight Night Riding 1000 Lumens --- ## 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.is/products/3295063-thunderbolt-usb-taillight](https://www.desertcart.is/products/3295063-thunderbolt-usb-taillight) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-05-20*