{"product_id":"gtr-i-led-ultra-4257-switchback-pair","title":"4257: GTR i-LED Ultra Turn Signal Bulbs","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGTR Lighting Ultra i-LED\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e represents the next evolution in high-performance automotive LED bulbs. Instead of chasing inflated lumen numbers, GTR focused on what truly matters—optical engineering, efficiency, and real-world visibility. The result is a premium LED bulb that delivers outstanding brightness, superior beam performance, and a clean OEM+ appearance both day and night.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAdvanced Optical Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike conventional LED replacement bulbs that simply flood light in every direction, the Ultra i-LED utilizes an advanced optical system designed to maximize usable light output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts precision optics project a portion of the light directly forward for exceptional close-range visibility while reflecting more than half of the light back into your factory reflector. This creates a significantly brighter and more uniform illumination that's highly visible from a distance, making these bulbs ideal for brake lights, tail lights, turn signals, and daytime running lights.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Performance Without External Resistors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Ultra i-LED consumes nearly the same amount of power as a traditional incandescent or halogen bulb, allowing it to operate \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ewithout external load resistors in many applications\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor vehicles prone to hyperflash when used as turn signals, GTR recommends optional plug-and-play anti-hyperflash modules to ensure reliable, error-free operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIntelligent i-Driver Technology\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEach bulb features GTR's advanced \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ei-Driver\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e electronic driver system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUpon activation, the bulb briefly operates in a high-output mode for less than two seconds, producing maximum brightness exactly when it's needed. The driver then automatically transitions to a lower operating level to reduce heat while maintaining exceptional reliability and long service life.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Appearance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Ultra i-LED doesn't just perform better—it looks better too.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThanks to its crystal-clear precision optics, the LED chips remain completely hidden from view. Instead of seeing exposed emitters inside your headlights or taillights, you'll see a clean, mirror-like optical lens extending from a beautifully machined anodized aluminum housing, creating a premium OEM-inspired appearance even when the lights are turned off.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAvailable Colors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe GTR Ultra i-LED is available in multiple color configurations to suit a wide range of applications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePure White\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePC Amber\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWhite \/ Amber Switchback\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts universal collar design allows installation into most headlight and taillight housings for maximum compatibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAdvanced optical lens design for maximum usable light output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReflector-enhancing light distribution for superior visibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntelligent i-Driver electronics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInitial high-output boost for maximum brightness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic thermal management for long-term reliability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResistor-free operation in many applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptional plug-and-play hyperflash modules available\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePremium anodized aluminum construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHidden LED chip design for a clean OEM+ appearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable in White, Red, PC Amber \u0026amp; White\/Amber Switchback\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUniversal fit for numerous lighting applications\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInput Voltage: 9-24V DC\u003c\/li\u003e\n\u003cli\u003eCurrent: 260mA-2.1A (Red, White, Amber Models), 1.3A (Switchback Model) @ 12V DC\u003c\/li\u003e\n\u003cli\u003eLight Source: 9-12x Proprietary SMD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLED Bulbs: 2x (One Pair) GTR Ultra Indicator-LED Bulbs\u003c\/li\u003e\n\u003cli\u003eWiring: 2x 4257 Plug and Play Inputs\u003c\/li\u003e\n\u003cli\u003eHardware: 4x Gaskets, 1x Torx Tool\u003c\/li\u003e\n\u003cli\u003eOptional Hyperflash Adapters: 2x\u003c\/li\u003e\n\u003cli\u003eWarranty: Lifetime Limited (Click for Details)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCross Compatibility: 4257\u003c\/li\u003e\n\u003cli\u003eFITMENT: Signal, Marker, Brake, Tail, Reverse Lights\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/5129608.app.netsuite.com\/core\/media\/media.nl?id=7261962\u0026amp;c=5129608\u0026amp;h=D_AhPE-A2zc9EvrfChIcvpZficcr1f1UMfR5g6dPg-uOqOtv\u0026amp;_xt=.pdf\" target=\"_blank\"\u003eInstallation Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=q7Nclp5GnZ0\" target=\"_blank\"\u003eProduct Video\u003c\/a\u003e\u003c\/p\u003e","brand":"GTR Lighting","offers":[{"title":"GTR-I-LED Ultra 4257 Red (PAIR)","offer_id":46297735888993,"sku":"LED970","price":234.99,"currency_code":"CAD","in_stock":true},{"title":"GTR-I-LED Ultra 4257 White (PAIR)","offer_id":46297735921761,"sku":"LED971","price":234.99,"currency_code":"CAD","in_stock":true},{"title":"GTR-I-LED Ultra 4257 Amber (PAIR)","offer_id":46297735954529,"sku":"LED972","price":234.99,"currency_code":"CAD","in_stock":true},{"title":"GTR-I-LED Ultra 4257 Switchback (PAIR)","offer_id":46297735987297,"sku":"LED973","price":234.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/6713\/2769\/files\/68228.GTR_iLED_Bulbs.010_6ac665e3-5cf8-477a-a9ec-ec0667df87b5.jpg?v=1784571779","url":"https:\/\/nextgenerationlightingmodz.com\/products\/gtr-i-led-ultra-4257-switchback-pair","provider":"Next Generation Lighting Modz","version":"1.0","type":"link"}