{"product_id":"sealight-3157-3156-switchback-led-bulbs-pack-of-2-amber-white-30w-3200lm-anti-hyperflash-with-active-cooling","title":"SEALIGHT 3157\/3156 Switchback LED Bulbs Pack of 2 — Amber\/White, 30W 3200LM, Anti‑Hyperflash with Active Cooling","description":"\u003cp\u003e\u003cstrong\u003eThe SEALIGHT 3157\/3156 switchback LED bulb gives you selectable amber turn signals and bright white daytime running lights in one plug‑and‑play unit.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese dual‑color bulbs combine a 2700K amber flash for signaling and a 6000K white output for DRL with an integrated smart driver and active cooling. With 30W (per pair listing: 32W per bulb spec), 3200 lumens, and an onboard resistor system, they’re engineered to increase visibility while avoiding hyper‑flash on most vehicles without extra parts.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the color switching work between amber and white?\u003c\/h3\u003e\n\u003cp\u003eThe SEALIGHT 3157 uses a mix of dedicated amber and white LED chips managed by an intelligent driver that selects color based on how the lamp is powered. When the turn signal circuit is activated the bulb switches to amber; when used as a daytime running light the white chips illuminate. No manual toggle is required—your vehicle’s existing wiring controls the behavior.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e36 J3-series LED chips per bulb: white and amber groups\u003c\/li\u003e\n  \u003cli\u003eAutomatic switching via vehicle signal input\u003c\/li\u003e\n  \u003cli\u003eWhite = 6000K for DRL, Amber = 2700K for signaling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these bulbs cause hyper‑flashing or error codes?\u003c\/h3\u003e\n\u003cp\u003eMost owners won’t need extra resistors: the integrated J3 intelligent driver includes a built‑in load that prevents hyper‑flash on around 99% of cars. That limits rapid flash rates and reduces false error messages on modern CAN‑bus systems. Some vehicles with unique CK circuits may still require a CK‑design bulb or additional adaptation—check fitment details first.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBuilt‑in resistor and driver for most CAN‑bus systems\u003c\/li\u003e\n  \u003cli\u003eReduces need to buy external load resistors or modify wiring\u003c\/li\u003e\n  \u003cli\u003eConfirm compatibility with your vehicle’s socket type and CK circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does SEALIGHT handle heat and longevity for high output LEDs?\u003c\/h3\u003e\n\u003cp\u003eThermal design combines a full 6063 aviation‑grade aluminum body with a hollow base and a high‑speed turbine fan to move heat away from the LED array. An intelligent temperature control system moderates fan speed to preserve components and extend service life. This multi‑layer cooling approach keeps the bulbs running efficiently under continuous DRL use or repeated signaling.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e6063 aviation‑grade aluminum housing for rapid heat transfer\u003c\/li\u003e\n  \u003cli\u003e15000 rpm turbine fan and hollow base for active cooling\u003c\/li\u003e\n  \u003cli\u003eIntelligent thermal control adjusts fan operation for reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sockets and vehicles are these bulbs compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe SEALIGHT J3 Pro Max series is designed for standard 3157\/3156-style sockets and a range of related sizes (3056, 3047, 3057, 3457, 4057, 4157, 3057A, 3357NA). They are not for CK‑circuit sockets unless you specifically choose a CK model. Use the vehicle fitment tool to confirm the 3157 family matches your car before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits standard 3157\/3156 sockets and listed equivalent models\u003c\/li\u003e\n  \u003cli\u003eNot compatible with some CK‑circuit sockets—choose CK option when required\u003c\/li\u003e\n  \u003cli\u003eVerify fitment using the lookup tool before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These SEALIGHT switchback bulbs suit drivers who want a clean, single‑bulb solution for both DRL and turn signals—particularly those upgrading stock incandescent bulbs for brighter, faster‑responding LEDs without adding external resistors. Ideal for owners of vehicles with standard 3157\/3156 sockets who want improved daytime visibility and clear amber signaling in one plug‑and‑play package.\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: Do I need extra resistors to stop hyper‑flashing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Usually no. The built‑in J3 driver and resistor prevent hyper‑flash on most vehicles, but some CK circuits may still require a CK-specific bulb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these bulbs plug‑and‑play for 3157 sockets?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—these are designed for standard 3157\/3156 sockets and similar models; confirm compatibility with your vehicle fitment tool first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SEALIGHT","offers":[{"title":"Default Title","offer_id":48080978968734,"sku":"B0CJ97TGRG","price":79.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sealight-3157-front-view-pack-of-2.jpg?v=1785793588","url":"https:\/\/northtrailauto.ca\/products\/sealight-3157-3156-switchback-led-bulbs-pack-of-2-amber-white-30w-3200lm-anti-hyperflash-with-active-cooling","provider":"North Trail Auto","version":"1.0","type":"link"}