{"product_id":"sealight-h4-9003-hb2-led-headlight-bulbs-pack-of-2-6500k-cool-white-1-1-size-canbus-active-cooling","title":"SEALIGHT H4\/9003\/HB2 LED Headlight Bulbs Pack of 2 — 6500K Cool White, 1:1 Size, CANBUS \u0026 Active Cooling","description":"\u003cp\u003e\u003cstrong\u003eSEALIGHT H4\/9003\/HB2 LED bulbs are a plug-and-play replacement set that delivers a bright 6500K cool white beam, designed for a focused road pattern and long service life.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese SEALIGHT H4 (9003\/HB2) LEDs upgrade halogen bulbs with a compact 1:1 form factor, active cooling, and CANBUS compatibility to reduce flicker and error messages on most modern vehicles. The pair offers a high lumen output, engineered beam control, and a rugged housing intended for extended on-road durability. They suit drivers who want clearer nighttime vision without modifying headlamp housings or wiring.\u003c\/p\u003e\n\n\u003ch3\u003eHow much brighter are these bulbs compared with stock halogens?\u003c\/h3\u003e\n\u003cp\u003eThese SEALIGHT LEDs use multiple high-efficiency chips and optimized optics to deliver a large increase in perceived brightness compared with factory halogen lamps. The result is stronger white light and improved contrast for road signs and obstacles at night, especially in low-light conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMulti-chip LED design for higher lumen density\u003c\/li\u003e\n  \u003cli\u003e6500K cool white color for crisp visibility\u003c\/li\u003e\n  \u003cli\u003eDesigned to replace dim, yellow halogen output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill they work in my car without extra parts or modifications?\u003c\/h3\u003e\n\u003cp\u003eYes — the bulbs are built to a 1:1 size and plug directly into factory sockets on most vehicles. Non-polarized wiring and integrated CANBUS help avoid decoding errors and flicker, so installation is often just a matter of swapping bulbs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect plug-and-play fit for H4\/9003\/HB2 sockets\u003c\/li\u003e\n  \u003cli\u003eNon-polarized design eliminates orientation issues\u003c\/li\u003e\n  \u003cli\u003eCANBUS compatibility reduces dashboard error messages\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the cooling system protect bulb life and performance?\u003c\/h3\u003e\n\u003cp\u003eThe bulbs use aerospace-grade aluminum with a hollow-carved body and a high-speed fan to draw heat away from the LEDs. Stable operating temperatures help preserve output consistency and extend usable life compared with poorly cooled aftermarket lights.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTurbo cooling fan spins at high RPM for active heat removal\u003c\/li\u003e\n  \u003cli\u003eAluminum housing improves thermal conductivity\u003c\/li\u003e\n  \u003cli\u003eIP68-rated seals guard against water and dust intrusion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat kind of beam pattern and on-road behavior can I expect?\u003c\/h3\u003e\n\u003cp\u003eSEALIGHT designed the optic and chip layout to recreate a clear, focused beam with a distinct cut-off so you illuminate the road ahead while limiting glare to oncoming drivers. That beam control helps with both forward visibility and compliance with common headlamp housings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered to mimic factory beam shape and cutoff line\u003c\/li\u003e\n  \u003cli\u003eFocused hotspot for long-distance visibility and peripheral fill\u003c\/li\u003e\n  \u003cli\u003eReduced scatter to minimize glare for other drivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers who want a bright, cool-white upgrade from halogen bulbs without modifying headlamp assemblies or wiring. This pack of two suits commuters, road-trippers, and owners of vehicles that accept H4\/9003\/HB2 bulbs who value easier nighttime visibility, CANBUS compatibility, and durable cooling for long service life. If your vehicle has a specialized lighting system (adaptive headlights or unique connectors), verify compatibility before purchase or contact SEALIGHT for guidance.\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: Are these SEALIGHT H4 bulbs easy to install?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They are plug-and-play for H4\/9003\/HB2 sockets with non-polarized wiring, typically installed in under five minutes per side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need a decoder or adapter for CANBUS vehicles?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Most vehicles won’t need extra decoders thanks to built-in CANBUS compatibility, but contact SEALIGHT if your car still shows errors.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SEALIGHT","offers":[{"title":"Default Title","offer_id":48083417497758,"sku":"B0F9F9DKSJ","price":50.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sealight-h4-pack-front.jpg?v=1785832857","url":"https:\/\/northtrailauto.ca\/products\/sealight-h4-9003-hb2-led-headlight-bulbs-pack-of-2-6500k-cool-white-1-1-size-canbus-active-cooling","provider":"North Trail Auto","version":"1.0","type":"link"}