{"product_id":"marsauto-d4s-hid-bulbs-6000k-35w-pack-of-2-plug-and-play-oem-fit-cold-white","title":"Marsauto D4S HID Bulbs 6000K 35W Pack of 2 — Plug-and-Play OEM Fit, Cold White","description":"\u003cp\u003e\u003cstrong\u003eMarsauto D4S HID bulbs are 6000K, 35W plug-and-play xenon replacement lamps engineered to deliver bright cold-white illumination and direct OEM fit for D4S HID assemblies.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Marsauto D4S (42402\/66440) replacement bulbs are designed for drivers who want crisp, factory-style HID lighting without modifying the vehicle wiring. Each bulb uses high-purity xenon gas, UV-resistant quartz glass, and precision-wound electrodes to reach steady brightness quickly while fitting standard D4S receptacles. The pair in this pack aims to reproduce original beam pattern and color temperature for modern headlights.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly do these bulbs reach full brightness?\u003c\/h3\u003e\n\u003cp\u003eMarsauto’s D4S bulbs warm up rapidly and achieve usable illumination in seconds, settling into full brightness shortly after startup. That fast ramp-up helps with visibility when you first turn the lights on at night or during brief stops.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFull illumination within about 5 seconds under normal conditions\u003c\/li\u003e\n  \u003cli\u003eEven light output thanks to heat-resistant, dense electrodes\u003c\/li\u003e\n  \u003cli\u003eStable color temperature as the bulb warms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these bulbs fit my vehicle’s D4S HID assembly?\u003c\/h3\u003e\n\u003cp\u003eYes — the Marsauto D4S bulbs are produced to a 1:1 OEM size and connector specification for direct replacement. They are intended for vehicles that accept D4S\/42402\/66440 style bulbs and do not require ballast or wiring changes when the original system already uses D4S HID technology.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard D4S base and plug compatibility (42402, 66440, 42402C1)\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play installation — no cutting or splicing\u003c\/li\u003e\n  \u003cli\u003eFits existing HID ballasts and housings designed for D4S bulbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and reliable are these bulbs in everyday use?\u003c\/h3\u003e\n\u003cp\u003eThese bulbs are built with UV-resistant quartz glass and airtight seals to resist breakdown from heat and moisture. Laser-welded construction and precision electrodes improve shock and vibration tolerance so the bulbs last longer under typical driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated for roughly 3,000 hours of life with proper use\u003c\/li\u003e\n  \u003cli\u003eLaser-welded assembly resists vibration and impacts\u003c\/li\u003e\n  \u003cli\u003eSealed design prevents gas loss and glass discoloration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat color and beam quality can I expect on the road?\u003c\/h3\u003e\n\u003cp\u003eThe bulbs produce a cold-white 6000K tone that emphasizes contrast and detail without creating excessive glare when used in appropriate reflector or projector housings. The xenon gas mix and APL capsule help maintain a consistent, even beam with minimal dark spots.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e6000K cold-white color for a modern appearance\u003c\/li\u003e\n  \u003cli\u003eHigh-purity xenon and APL capsule for uniform beam\u003c\/li\u003e\n  \u003cli\u003eDesigned to avoid hot spots or uneven light distribution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers who need a straightforward, OEM-style D4S replacement that restores factory beam pattern and a neutral-cool 6000K color without rewiring. This twin pack suits owners of vehicles originally equipped with D4S HID systems who prefer plug-and-play swaps, expect reliable performance across seasons, and want improved nighttime contrast compared with aged or dim factory bulbs.\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 bulbs compatible with my car’s D4S ballast?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they use the standard D4S connector and work with original D4S ballasts without rewiring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What color temperature do these bulbs produce?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They produce a cold-white 6000K tone for crisp contrast and a modern HID look.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Marsauto","offers":[{"title":"Default Title","offer_id":55167009194327,"sku":"B0F475STTK","price":39.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/marsauto-d4s-front-view-packaging.jpg?v=1790374933","url":"https:\/\/britishgarage.co.uk\/products\/marsauto-d4s-hid-bulbs-6000k-35w-pack-of-2-plug-and-play-oem-fit-cold-white","provider":"British Garage","version":"1.0","type":"link"}