{"product_id":"ifunyled-3157-switchback-led-turn-signal-bulbs-super-bright","title":"iFunyLED 3157 Switchback Led Turn Signal Bulbs Super Bright","description":"\u003cstrong\u003eiFunyLED 3157 Switchback LED bulbs are a dual-color replacement set that provides bright xenon-white for parking\/DRL and amber for turn signals in one 3157-style lamp.\u003c\/strong\u003e\n\n\u003cp\u003eThese switchback LEDs combine two distinct light outputs in a single 3157-compatible unit so vehicles that use one lamp for both daytime\/parking illumination and signaling can achieve crisp white running lights and clear amber flashes. Each bulb contains multiple high-output 5730 LED chips, a wide 360° emission pattern, and low power draw for extended life. Before purchasing, confirm your existing socket uses one bulb for both functions — otherwise the switchback feature may not operate correctly.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these bulbs fit my car and what sockets are compatible?\u003c\/h3\u003e\n\u003cp\u003eiFunyLED 3157 bulbs follow the standard 3157 form factor and are electrically compatible across a range of equivalent codes. They fit many vehicles that accept 3157\/3057\/3357\/3457\/4157-style lamps, but will only perform both white and amber modes if your fixture combines parking\/DRL and turn signal in a single filament circuit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard fit: 3157 footprint with cross-compatibility to 3057, 3357, 3457, 4057, 4114, 4157 and similar.\u003c\/li\u003e\n  \u003cli\u003eVoltage: operates on DC 12–24V systems commonly found in cars, trucks, and SUVs.\u003c\/li\u003e\n  \u003cli\u003eUse case: designed for combined parking\/DRL + turn signal sockets, not separate dedicated circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat brightness and color outputs should I expect?\u003c\/h3\u003e\n\u003cp\u003eEach bulb uses 22 high-brightness 5730 LED chips to deliver strong light intensity and a near-complete viewing angle, producing a vivid xenon-white for running lights and a clear amber for signaling. The switchback design changes between steady white and flashing amber without producing a distracting white-amber-white cycle that some other bulbs show.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eXenon white: approximately 6500K for daylight-style parking or DRL illumination.\u003c\/li\u003e\n  \u003cli\u003eAmber signal: around 1800K for highly visible turn indications.\u003c\/li\u003e\n  \u003cli\u003e360° emission minimizes dark spots for consistent appearance from most viewing angles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill I need additional parts like resistors or relays?\u003c\/h3\u003e\n\u003cp\u003eBecause LED bulbs draw much less current than incandescent lamps, some vehicles may register hyper-flash, error codes, or bulb-out warnings. In those cases, adding a load resistor (e.g., 50W 6Ω) or an LED-compatible flasher relay will restore normal flash rates and error-free operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIf you get hyper-flash or a dashboard warning, install a load resistor or LED flasher relay.\u003c\/li\u003e\n  \u003cli\u003eResistors and relay changes depend on vehicle make and year — consult a mechanic for fitment and placement.\u003c\/li\u003e\n  \u003cli\u003eContact iFunyLED support for troubleshooting or replacement assistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers who want a clean, modern look and improved visibility from dual-function lamps will appreciate these iFunyLED 3157 switchback bulbs. They suit owners of cars, trucks, or SUVs that use one bulb for both daytime\/parking and turn signal duties and who prefer bright xenon-white running lights combined with strong amber signaling. If your vehicle separates DRL\/parking and turn circuits, consider single-color replacements instead.\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: Can these bulbs work with vehicles using separate DRL and turn signal bulbs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — they require a single bulb handling both DRL\/parking and turn signal to switch between white and amber.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What should I do if I get hyper-flash or a dashboard error?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Install a 50W 6Ω load resistor or swap to an LED-compatible flasher relay to correct flash rate and warnings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"iFunyLED","offers":[{"title":"Default Title","offer_id":48087122215070,"sku":"B0FC2G76YZ","price":31.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ifunyled-3157-front-packaging.jpg?v=1785917128","url":"https:\/\/northtrailauto.ca\/products\/ifunyled-3157-switchback-led-turn-signal-bulbs-super-bright","provider":"North Trail Auto","version":"1.0","type":"link"}