{"product_id":"auxbeam-q40-series-h4-9003-led-fog-off-road-lights-120w-30-000lm-6500k-plug-and-play-decoding","title":"Auxbeam Q40 Series H4 (9003) LED Fog \u0026 Off-Road Lights — 120W 30,000LM 6500K, Plug-and-Play Decoding","description":"\u003cstrong\u003eAuxbeam Q40 Series H4 (9003) are compact, high-output LED fog and off-road lamps delivering up to 30,000 lumens and a focused 6500K white beam for clearer night and low-visibility driving.\u003c\/strong\u003e\n\n\u003cp\u003eThe Q40 Series replaces H4\/9003 halogen bulbs with a self-contained LED solution engineered for rugged use. Built with dense multi-chip emitters, advanced cooling hardware, and built-in vehicle decoding, these lamps aim to provide a brighter, cleaner beam without bulky external ballasts. They are designed for easy, plug-and-play swap with the factory H4 interface while reducing glare and maintaining a crisp cutoff.\u003c\/p\u003e\n\n\u003ch3\u003eHow much brighter are these bulbs compared with stock halogen lights?\u003c\/h3\u003e\n\u003cp\u003eThese LED units deliver a dramatic increase in luminous output and visual clarity versus typical halogen H4 bulbs. The Q40 Series combines many small LEDs arranged tightly to raise perceived brightness and enhance object definition at distance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated up to 30,000 lumens (pair) from a 120W assembly.\u003c\/li\u003e\n  \u003cli\u003e6500K cool white color for higher contrast at night.\u003c\/li\u003e\n  \u003cli\u003eDense chip layout reduces dark spots and produces a uniform beam.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat cooling and durability features keep them reliable on long runs?\u003c\/h3\u003e\n\u003cp\u003eAuxbeam engineered multi-layer thermal control to keep LED junction temperatures low under heavy use. The design blends active and passive cooling elements so the lights sustain output and lifespan during demanding off-road or extended highway driving.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntegrated high-RPM turbo fan plus liquid-cooling copper tube for active heat removal.\u003c\/li\u003e\n  \u003cli\u003ePure copper mounting base and aviation-grade aluminum housing for passive dissipation.\u003c\/li\u003e\n  \u003cli\u003eInternal temp-control circuitry and cold-shield fins extend service life to around 60,000 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and will it cause error codes on modern vehicles?\u003c\/h3\u003e\n\u003cp\u003eThe Q40 Series is built as an all-in-one metal lamp that mirrors the factory H4\/9003 filament and collar positions to simplify swap-in installation. It includes smart decoding to reduce ECU errors on most modern vehicles, eliminating the need for external ballasts or bulky adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit H4\/9003 shape and connector alignment for quick installation.\u003c\/li\u003e\n  \u003cli\u003eIntegrated decoding chips to prevent flicker or warning messages on 99% of systems.\u003c\/li\u003e\n  \u003cli\u003eNo separate ballast, adapter, or fragile plastic plug required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there fitment notes or limitations I should know before ordering?\u003c\/h3\u003e\n\u003cp\u003eThese lamps are not intended for use as daytime running lights (DRL); confirm fitment using your vehicle’s H4\/9003 socket and available clearance. Review the product photos and fitment notes if your headlamp housing has limited rear clearance or integrated DRL circuits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot compatible for DRL circuits—use as fog or off-road lighting instead.\u003c\/li\u003e\n  \u003cli\u003eCheck rear housing clearance; compact metal body still requires some space.\u003c\/li\u003e\n  \u003cli\u003eTwo-year warranty and vendor support available for installation help or troubleshooting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Drivers who want a straightforward, high-output upgrade from halogen H4\/9003 bulbs—particularly off-road enthusiasts, fog-light upgraders, and commuters seeking better nighttime visibility—will appreciate the Auxbeam Q40’s plug-and-play fit, concentrated 6500K beam, and rugged thermal management. If your vehicle’s lighting system requires DRL compatibility or you cannot provide rear-cavity clearance, check fitment details before purchasing.\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 fit my H4\/9003 socket?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—Q40 is designed to match H4\/9003 filament and collar positions for direct-fit installation in most vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do they trigger dashboard errors or flicker?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Most vehicles are covered by the built-in decoding chips, preventing flicker or error codes on about 99% of systems.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Auxbeam","offers":[{"title":"Default Title","offer_id":48080714956958,"sku":"B0FPLPPVY5","price":124.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/auxbeam-q40-front-view_af94789b-b751-4a7f-8066-9d9af13ed394.jpg?v=1785784392","url":"https:\/\/northtrailauto.ca\/products\/auxbeam-q40-series-h4-9003-led-fog-off-road-lights-120w-30-000lm-6500k-plug-and-play-decoding","provider":"North Trail Auto","version":"1.0","type":"link"}