{"product_id":"sealight-h4-led-headlight-bulbs-s6-pro-9003-hb2-pack-of-2-6500k-cool-white-ip68-fan-cooled","title":"SEALIGHT H4 LED Headlight Bulbs S6-Pro (9003\/HB2) Pack of 2 — 6500K Cool White, IP68 Fan‑Cooled","description":"\u003cp\u003e\u003cstrong\u003eThe SEALIGHT H4 S6-Pro 9003 LED bulbs are high-output, plug-and-play headlight replacements that deliver bright 6500K cool-white light with a factory-matched beam and integrated cooling for reliable long-term use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese S6-Pro H4 (9003\/HB2) bulbs are built to be a direct swap for most halogen setups, offering a dramatic increase in brightness while preserving a controlled beam pattern to limit glare. With a compact 1:1 form factor, IP68 protection and an internal fan-cooled aluminium housing, they aim to combine easy installation with durable thermal management and broad vehicle compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eHow much brighter are these bulbs compared with stock halogens?\u003c\/h3\u003e\n\u003cp\u003eSEALIGHT rates the S6-Pro H4 pair with a much higher lumen output than standard halogen bulbs, producing a notably stronger and crisper white beam. The higher luminous output helps you see road details farther and improves contrast in low-light conditions without changing aim.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufacturer-rated high-output LED array per bulb for significantly increased lumens\u003c\/li\u003e\n  \u003cli\u003e6500K cool-white color temperature for clearer object definition\u003c\/li\u003e\n  \u003cli\u003eOptimized chip placement to create a focused, usable beam rather than scattered glare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my vehicle and trigger dashboard errors?\u003c\/h3\u003e\n\u003cp\u003eThe bulbs are designed in a 1:1 size to match original halogen H4\/HB2 sockets and avoid clearance issues in most housings. A CANbus-ready design helps prevent common errors like warning lights, flicker, or interference on compatible vehicle systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1:1 physical dimensions for direct replacement—no modifying the headlamp required\u003c\/li\u003e\n  \u003cli\u003eBuilt-in electronics to reduce false error codes on 99% of vehicle ECUs\u003c\/li\u003e\n  \u003cli\u003eNo external drivers or extra wiring needed—simple plug-and-play hookup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the cooling system maintain performance and lifespan?\u003c\/h3\u003e\n\u003cp\u003eThermal management uses a combination of aerospace-grade hollow-chamber aluminium and a high-speed silent fan to move heat away from the LEDs. Efficient heat dissipation keeps junction temperatures lower, promoting stable output and extending usable life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHollow-chamber aluminium housing for passive heat transfer\u003c\/li\u003e\n  \u003cli\u003eHigh-RPM low-noise fan for active cooling under load\u003c\/li\u003e\n  \u003cli\u003eEngineered to maintain consistent brightness and reduce thermal throttling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what should I expect?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: the S6-Pro bulbs are made to plug into existing H4\/HB2 headlamp sockets without extra adapters or external drivers. The all-in-one design minimizes installation time and reduces clutter in the engine bay.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play wiring—no splicing or relay harness typically required\u003c\/li\u003e\n  \u003cli\u003eCompact, original-size profile fits most housings and keeps reflectors aligned\u003c\/li\u003e\n  \u003cli\u003eIP68-rated protection against dust and water for reliable performance in varied conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers who want a substantial brightness upgrade from halogen bulbs while keeping a correct beam pattern and straightforward installation. These SEALIGHT S6-Pro H4 (9003\/HB2) LEDs suit commuters, weekend road travelers, and anyone seeking improved night visibility with broad vehicle compatibility and durable cooling. If you need headlights that are simple to install, provide a crisp 6500K light, and are built to run reliably in tough conditions, these bulbs are designed to meet that need.\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 these H4 bulbs require an external driver or adapter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, the S6-Pro H4 bulbs are all-in-one plug-and-play units and don’t need an external driver or additional adapters for most vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these bulbs waterproof for rainy driving?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they feature IP68 protection, providing strong resistance to dust and water for reliable use in wet conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SEALIGHT","offers":[{"title":"Default Title","offer_id":48083099910302,"sku":"B0FFH75DRV","price":61.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sealight-h4-front-view.jpg?v=1785824853","url":"https:\/\/northtrailauto.ca\/products\/sealight-h4-led-headlight-bulbs-s6-pro-9003-hb2-pack-of-2-6500k-cool-white-ip68-fan-cooled","provider":"North Trail Auto","version":"1.0","type":"link"}