{"product_id":"marsauto-3156-3157-amber-led-turn-signal-bulbs-pack-of-2-27-smd-360-coverage-decoder-included","title":"Marsauto 3156\/3157 Amber LED Turn Signal Bulbs Pack of 2 — 27-SMD, 360° Coverage, Decoder Included","description":"\u003cp\u003e\u003cstrong\u003eMarsauto amber 3156\/3157 LED bulbs are plug-and-play turn signal and marker light replacements that deliver up to 500% more brightness than stock halogen bulbs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese upgraded 27-SMD amber LEDs are built to replace common halogen sockets such as 3056, 3156, 3157, 3057A, 4057, and 4157, offering a clear amber flash for turn signals, parking lights, side markers, and DRLs. The bulbs use a 360° light pattern and aircraft-grade aluminum housing for improved heat dissipation and longer life, and each pack includes a decoder to help prevent flicker in vehicles with CAN-bus systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these LEDs improve visibility compared with stock halogen bulbs?\u003c\/h3\u003e\n\u003cp\u003eThe Marsauto LEDs emit a stronger, more concentrated amber light that is easier to see in daylight and poor weather. Brighter output and full 360° coverage minimize dark spots and make signaling clearer to other drivers without creating distracting glare.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e27 SMD chips for uniform light distribution\u003c\/li\u003e\n  \u003cli\u003eRated up to 500% brighter than equivalent halogen bulbs\u003c\/li\u003e\n  \u003cli\u003e360° luminous coverage to eliminate black spots\u003c\/li\u003e\n  \u003cli\u003eAmber color tuned for signaling visibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these bulbs fit my vehicle and how simple is installation?\u003c\/h3\u003e\n\u003cp\u003eThe bulbs are designed to match the size and pin layout of common US halogen sockets so most replacements are direct plug-and-play. They are non-polarity and typically install in minutes without tools; the included decoder helps resolve flicker for sensitive electrical systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for 3056, 3156, 3157, 3057A, 4057, 4157 and similar\u003c\/li\u003e\n  \u003cli\u003eNon-polarity design reduces installation errors\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play — usually under five minutes per bulb\u003c\/li\u003e\n  \u003cli\u003eDecoder included for vehicles with hyperflash or CAN-bus issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable are these LEDs and what about heat management?\u003c\/h3\u003e\n\u003cp\u003eMarsauto upgraded bulbs use aircraft-grade aluminum and a hollowed heat-sink structure to remove heat quickly, supporting a long operating life. Improved thermal performance helps maintain brightness and reliability over tens of thousands of hours under normal driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAircraft-grade aluminum housing for rapid heat dispersion\u003c\/li\u003e\n  \u003cli\u003eHollow design reduces thermal build-up\u003c\/li\u003e\n  \u003cli\u003eEstimated 50,000+ hour lifespan under typical use\u003c\/li\u003e\n  \u003cli\u003eStable output with minimized risk of blackening or failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo I need any extra parts or can I expect electrical issues?\u003c\/h3\u003e\n\u003cp\u003eMost installations are completed without additional components, but some vehicles with built-in load detection or CAN-bus systems may require minor wiring or the supplied decoder to prevent flicker or hyperflash. Always check your owner’s manual to confirm compatibility before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDecoder included to address flicker or error codes\u003c\/li\u003e\n  \u003cli\u003eNo resistors needed for many vehicles, but some may require them\u003c\/li\u003e\n  \u003cli\u003eCheck vehicle manual or ask for fitment help if unsure\u003c\/li\u003e\n  \u003cli\u003eDesigned to match US standard and CK sockets for wide compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Drivers looking to upgrade turn signals, side markers or parking lights with a brighter, longer-lasting amber LED that installs quickly will find these Marsauto 3156\/3157 bulbs useful. They suit DIYers replacing worn halogens, car enthusiasts who want crisper signaling, and owners of vehicles with compatible sockets who prefer a reliable, low-maintenance lighting upgrade. If you’re uncertain about fitment, consult your vehicle’s manual or contact Marsauto-compatible support before ordering.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these fit my 3157 bulb socket?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — designed as direct replacements for 3157\/3156 and compatible sockets, but verify your owner’s manual for exact fitment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need a resistor or decoder?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A decoder is included; most vehicles won’t need extra resistors, though some CAN-bus systems may still require additional wiring.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Marsauto","offers":[{"title":"Default Title","offer_id":48087209312414,"sku":"B0CRF49BFB","price":34.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/marsauto-bulb-front-packaging.jpg?v=1785918984","url":"https:\/\/northtrailauto.ca\/products\/marsauto-3156-3157-amber-led-turn-signal-bulbs-pack-of-2-27-smd-360-coverage-decoder-included","provider":"North Trail Auto","version":"1.0","type":"link"}