{"product_id":"biolight-km-h4-9003-halogen-headlight-bulbs-10-pack-12v-60-55w-3200k-warm-white-dot-compliant","title":"BIOLIGHT KM H4 (9003) Halogen Headlight Bulbs 10-Pack — 12V 60\/55W 3200K Warm White, DOT Compliant","description":"\u003cp\u003e\u003cstrong\u003eBIOLIGHT KM 9003\/H4 halogen bulbs are plug-and-play 12V 60\/55W headlight replacements that deliver a bright 3200K warm white beam for high and low beam applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese H4 (9003) bulbs are made to replace factory headlight and fog light bulbs without modification. Built with durable quartz glass and tungsten-alloy filaments, they balance brightness and longevity while meeting DOT and E1 safety standards. This 10-pack option is ideal for fleet maintenance, multi-vehicle households, or anyone who prefers keeping spare bulbs on hand.\u003c\/p\u003e\n\n\u003ch3\u003eHow bright and what color are these bulbs?\u003c\/h3\u003e\n\u003cp\u003eThese halogen bulbs run at 12V with a dual-filament 60\/55W rating, producing a 3200K color temperature that appears as a warm white with slightly yellow tones. That color helps maintain contrast in wet or foggy conditions without the icy blue tint of some aftermarket lights.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated output: standard halogen luminous range for 60\/55W dual-filament\u003c\/li\u003e\n  \u003cli\u003eColor temperature: 3200K warm white for glare-reducing contrast\u003c\/li\u003e\n  \u003cli\u003eHigh \u0026amp; low beam function in a single H4\/9003 bulb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my vehicle and require modifications?\u003c\/h3\u003e\n\u003cp\u003eBIOLIGHT KM 9003\/H4 bulbs are designed as direct OEM replacements for H4\/9003 sockets and install without tools or wiring changes. They match the physical and electrical form factors expected by most vehicles that use H4 bulbs, so installation is straightforward.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSocket type: H4 \/ 9003 — no adapter needed for compatible housings\u003c\/li\u003e\n  \u003cli\u003eVoltage: 12V — standard automotive electrical systems\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play: no cutting, splicing, or mounting kits required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable are these bulbs and what technologies improve lifespan?\u003c\/h3\u003e\n\u003cp\u003eThese bulbs use quartz glass coating and a tungsten-alloy filament to resist heat and vibration better than conventional glass bulbs. That combination improves filament durability and shock resistance, helping maintain reliable operation under normal driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eQuartz glass coating for thermal stability and clearer light output\u003c\/li\u003e\n  \u003cli\u003eTungsten-alloy filament to reduce breakage from vibration\u003c\/li\u003e\n  \u003cli\u003eManufactured to meet DOT and E1 standards for safety and performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these safe and compliant for road use?\u003c\/h3\u003e\n\u003cp\u003eYes—BIOLIGHT KM H4 bulbs are built to comply with DOT regulations and E1 certification, which helps ensure beam patterns and brightness follow legal and safety guidelines. They are designed to minimize glare when installed in properly aligned reflector or projector housings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDOT and E1 compliant manufacturing\u003c\/li\u003e\n  \u003cli\u003eEngineered to reduce excessive glare in standard housings\u003c\/li\u003e\n  \u003cli\u003eRecommended to replace bulbs in pairs for balanced output and safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Choose the BIOLIGHT KM 9003\/H4 10-pack if you need dependable, OEM-style H4 replacements for personal vehicles, workshops, or fleet operations. It’s a practical option for drivers who prefer the warm-white beam of 3200K halogen light, anyone who wants plug-and-play installation, and those who value DOT-compliant components for everyday road use.\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 BIOLIGHT KM H4 bulbs plug-and-play?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. These H4\/9003 bulbs are direct replacements for compatible factory sockets and require no modifications or special tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these bulbs meet road-legal standards?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are manufactured to DOT and E1 standards, designed to comply with common road-use regulations when installed in proper housings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BIOLIGHT KM","offers":[{"title":"Default Title","offer_id":67587035791545,"sku":"B0DSZCVS9Y","price":94.16,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/biolight-km-front-packaging.jpg?v=1790498703","url":"https:\/\/redleafauto.ca\/products\/biolight-km-h4-9003-halogen-headlight-bulbs-10-pack-12v-60-55w-3200k-warm-white-dot-compliant","provider":"Redleaf Auto","version":"1.0","type":"link"}