{"product_id":"ifunyled-3157-switchback-led-bulbs-pack-of-4-xenon-white-amber-dual-color-360-bright-replacement-for-drl-turn-signal","title":"iFunyLED 3157 Switchback LED Bulbs - Pack of 4 Xenon White\/Amber, Dual-Color 360° Bright Replacement for DRL \u0026 Turn Signal","description":"\u003cp\u003e\u003cstrong\u003eiFunyLED 3157 Switchback LED bulbs are dual-color replacement lights that glow xenon white for parking\/DRL and switch to amber for turn signals, designed for vehicles using a single 3157-style socket.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese switchback 3157 (also compatible with 3057\/3357\/3457\/4157 families) LED bulbs deliver bright, 360° illumination with rapid color change between daytime running\/parking white and signaling amber. Engineered for low power draw and fast heat dissipation, the set of four provides a high-visibility upgrade for compatible front light housings where one bulb handles both functions. Before purchasing, confirm your vehicle uses a single-bulb circuit for both parking\/DRL and turn signal functions; if not, the bulb may only operate in one color.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these bulbs switch between white and amber?\u003c\/h3\u003e\n\u003cp\u003eThe bulbs use integrated dual-color LED arrays that activate different chips for parking\/DRL (6500K xenon white) and turn signals (1800K amber). When the turn signal is engaged, the amber chips illuminate; when inactive, the white chips power the parking\/DRL function. This switchback action is electrical — no mechanical parts — giving immediate color change and consistent operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-chip design: separate xenon-white and amber circuits\u003c\/li\u003e\n  \u003cli\u003eInstant electrical switching when signal is activated\u003c\/li\u003e\n  \u003cli\u003e360° lighting angle from 22 high-brightness 5730 LEDs per bulb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my car and what sockets are supported?\u003c\/h3\u003e\n\u003cp\u003eiFunyLED lists these as standard 3157 bulbs but they are compatible with many related numbers (3057, 3357, 3457, 4057, 4114, 4157 and variants like 3057A\/3157A). Fit depends on the bulb socket style and whether one lamp performs both DRL\/parking and turn signal roles. Confirm your vehicle's bulb type and circuit behavior before ordering to ensure full switchback function.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard fit: 3157 form factor and common compatible variants\u003c\/li\u003e\n  \u003cli\u003eConfirm single-bulb DRL\/turn-signal circuit for dual-color use\u003c\/li\u003e\n  \u003cli\u003eCheck physical clearance in housings for LED heat sink and length\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo I need extra parts or wiring to prevent hyper-flash or errors?\u003c\/h3\u003e\n\u003cp\u003eBecause LEDs draw far less current than halogen bulbs, some vehicles will hyper-flash or show dashboard bulb-out warnings. iFunyLED recommends using a 50W 6-ohm load resistor per circuit or installing an LED-compatible flasher relay to mimic the original bulb load. If you see hyper-flash or error codes after installation, adding the resistor or relay typically resolves those issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMay require 50W 6Ω load resistor to prevent hyper-flash\u003c\/li\u003e\n  \u003cli\u003eLED flasher relay is an alternative on many vehicles\u003c\/li\u003e\n  \u003cli\u003eContact iFunyLED customer service for troubleshooting guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow bright and durable are these switchback LEDs?\u003c\/h3\u003e\n\u003cp\u003eEach bulb contains 22 high-output 5730 LED chips and offers a 360° beam to minimize blind spots, advertised as up to 300% brighter than many stock bulbs. Low wattage (around 3.8W per bulb) reduces power draw and heat, while the housing design promotes faster heat dissipation for longer service life. Bright xenon-white for visibility and clear amber for signaling increase on-road conspicuity without excessive energy use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e22 × 5730 LED chips per bulb for strong, even lighting\u003c\/li\u003e\n  \u003cli\u003e3.8W power consumption with efficient heat management\u003c\/li\u003e\n  \u003cli\u003eDistinct white and amber color temperatures for visibility and signaling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Drivers who want a modern, high-visibility upgrade for vehicles that use a single 3157-style bulb for both parking\/DRL and front turn signals. Best suited to owners comfortable verifying compatibility and, if necessary, fitting a load resistor or LED flasher relay. Ideal for people who prioritize brighter DRLs, distinct amber signaling, and a clean, integrated look without changing the vehicle's wiring harness.\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 bulbs work if my car has separate bulbs for DRL and turn signal?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — these switchback bulbs require a single bulb to handle both DRL\/parking and turn signal functions to use both colors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What if I get hyper-flash or a dashboard error after installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Install a 50W 6Ω load resistor or an LED-compatible flasher relay to correct hyper-flash or warning messages.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"iFunyLED","offers":[{"title":"Default Title","offer_id":67591063240889,"sku":"B0FC2G76YZ","price":62.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ifunyled-3157-front-view-pack-of-4.jpg?v=1790540386","url":"https:\/\/redleafauto.ca\/products\/ifunyled-3157-switchback-led-bulbs-pack-of-4-xenon-white-amber-dual-color-360-bright-replacement-for-drl-turn-signal","provider":"Redleaf Auto","version":"1.0","type":"link"}