{"product_id":"diode-dynamics-hd-led-halos-for-2016-2018-gmc-sierra-1500-switchback-part-dd2177","title":"Diode Dynamics HD LED Halos for 2016-2018 GMC Sierra 1500, Switchback, Part DD2177","description":"Features  Computer-designed LED Halos compatible with Sierra 1500 2016-2018 A huge increase in brightness, even in direct sunlight More uniform output, upgrade from segmented factory optics Designed and assembled in the USA   Overview Time for an upgrade! From the factory, the Sierra comes with a white C-shaped DRL that from certain angles can look segmented and distorted. Diode Dynamics is excited to release our HD LED Halos compatible with GMC Sierra 2016-2018 that provides a much brighter, more uniform appearance compared to the factory optics. These computer-designed LED Halos are circuit boards that align perfectly behind the factory diffusing reflector. Available in switchback and amber-only, both versions also function as an additional front turn signal for a custom, yet functional look! High output, clean appearance. The application-specific LED halos illuminate in place of the factory LED boards, with a much higher intensity. With our proprietary high-density \"HDLED\" technology, these modules are populated with over 700 LED chips, which are then coated by a diffusing gel, resulting in a perfectly uniform light when turned on. When it's off, the diffusing gel hides the chips, resulting in a clean, OEM appearance. Wire it up. Wiring instructions are included with your order. You will need to use the included T-tap connectors to connect the drivers to ground, parking signal, DRL, and turn signal on each side. Professional installation is recommended for this product, as the headlights must be opened. What's Included  Two (2) application-specific LED Halos Two (2) waterproof drivers Two (2) input wire pigtails with T-taps Installation guide 3-year replacement warranty \nDiode Dynamics is excited to release our HD LED Halos compatible with GMC Sierra 2016-2018 that provides a much brighter more uniform appearance compared to the factory optics.\nIncluded in the box: \r Two (2) application-specific LED Halos \r Two (2) waterproof drivers \r Two (2) input wire pigtails with T-taps \r Installation guide\n\u003cul\u003e\n  \u003cli\u003eExtremely bright high-density LEDs that are visible even in direct sunlight\u003c\/li\u003e\n  \u003cli\u003eIntegrated mounting tabs for easy installation\u003c\/li\u003e\n  \u003cli\u003ePhosphor coating for uniform solid appearance\u003c\/li\u003e\n  \u003cli\u003eMulti-function waterproof PWM drivers\u003c\/li\u003e\n  \u003cli\u003eMade in USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBrief Description:\u003c\/strong\u003e Upgrade the factory lighting appearance on your 2016-2018 GMC Sierra 1500 with Diode Dynamics HD LED Halos. Part DD2177 uses application-specific circuit boards designed to align behind the factory diffusing reflectors, creating a brighter, smoother, and more uniform light output than the original segmented optics. The switchback function provides a crisp white daytime running light and changes to amber when the turn signal is activated.\u003c\/p\u003e\n\u003cp\u003eBuilt with Diode Dynamics proprietary high-density LED technology, each halo uses more than 700 LED chips covered by a diffusing gel. This construction produces a clean, solid appearance when illuminated while concealing the individual chips when the lighting is off. The high-output design remains visible in direct sunlight and provides an additional functional front turn signal for a distinctive OEM-style upgrade.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation and Fitment:\u003c\/strong\u003e Professional installation is recommended because the headlamps must be opened to install the halos. The included wiring connects each driver to ground, parking signal, daytime running light, and turn signal circuits using the supplied T-tap connectors. This kit fits 2016, 2017, and 2018 GMC Sierra 1500 applications listed for this product. Wiring instructions are included, along with a three-year replacement warranty. The halos are designed and assembled in the USA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApplication: 2016-2018 GMC Sierra 1500\u003c\/li\u003e\n  \u003cli\u003eBrand: Diode Dynamics\u003c\/li\u003e\n  \u003cli\u003ePart Number: DD2177\u003c\/li\u003e\n  \u003cli\u003eLighting Function: White daytime running light with amber switchback turn signal\u003c\/li\u003e\n  \u003cli\u003eLED Technology: High-density LED array with more than 700 LED chips per kit\u003c\/li\u003e\n  \u003cli\u003eDriver Type: Multi-function waterproof PWM drivers\u003c\/li\u003e\n  \u003cli\u003eConstruction: Phosphor-coated diffusing gel for uniform illumination\u003c\/li\u003e\n  \u003cli\u003eOrigin: Designed and assembled in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included in the Box:\u003c\/strong\u003e Two application-specific LED halos, two waterproof drivers, two input wire pigtails with T-tap connectors, and an installation guide.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBright sunlight-visible output: High-density LEDs provide a substantial increase in brightness compared with factory optics, including improved visibility in direct sunlight.\u003c\/li\u003e\n\u003cli\u003eUniform OEM-style appearance: Phosphor-coated diffusing gel conceals individual LED chips and produces a smooth, solid light pattern when illuminated.\u003c\/li\u003e\n\u003cli\u003eSwitchback turn signal function: White halos operate as daytime running lights and switch to amber when the front turn signal is activated.\u003c\/li\u003e\n\u003cli\u003eApplication-specific USA construction: Computer-designed circuit boards include integrated mounting tabs and are designed specifically for 2016-2018 GMC Sierra 1500 headlamps.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2016 GMC Sierra 1500 Base\u003cbr\u003e\n2016 GMC Sierra 1500 Denali\u003cbr\u003e\n2016 GMC Sierra 1500 SLE\u003cbr\u003e\n2016 GMC Sierra 1500 SLT\u003cbr\u003e\n2017 GMC Sierra 1500 Base\u003cbr\u003e\n2017 GMC Sierra 1500 Denali\u003cbr\u003e\n2017 GMC Sierra 1500 SLE\u003cbr\u003e\n2017 GMC Sierra 1500 SLT\u003cbr\u003e\n2018 GMC Sierra 1500 Base\u003cbr\u003e\n2018 GMC Sierra 1500 Denali\u003cbr\u003e\n2018 GMC Sierra 1500 SLE\u003cbr\u003e\n2018 GMC Sierra 1500 SLT\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Diode Dynamics","offers":[{"title":"Default Title","offer_id":67646713331964,"sku":"DD2177","price":259.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/edd09339f60b44c61fee9cb67e5215cbL.jpg?v=1791171366","url":"https:\/\/diycustoms.store\/products\/diode-dynamics-hd-led-halos-for-2016-2018-gmc-sierra-1500-switchback-part-dd2177","provider":"diycustoms.store","version":"1.0","type":"link"}