{"product_id":"bicyaco-4x6-inch-led-headlights-4-pack-dot-rectangular-h4651-h4652-replacement-6500k-60w-ip67","title":"BICYACO 4x6 Inch LED Headlights 4-Pack — DOT Rectangular H4651\/H4652 Replacement, 6500K 60W IP67","description":"\u003cp\u003e\u003cstrong\u003eThese BICYACO 4x6 DOT-approved LED headlights (4-pack) replace H4651\/H4652\/H4656\/H4666 fittings to deliver bright, waterproof, plug-and-play lighting for trucks and classic vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUpgrade factory sealed-beam lamps to modern LEDs with this four-piece kit from BICYACO. Built for heavy-duty vehicles and older cars that use 4x6 inch rectangular housings, the set includes wiring harnesses and anti-flicker circuitry so installation is quick and reliable. Aluminum housings and an IP67 rating mean the lights stand up to road spray, cold starts, and long highway miles while providing a crisp 6500K white beam.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these headlights perform in real-world driving?\u003c\/h3\u003e\n\u003cp\u003eThe BICYACO LEDs produce a defined cut-off with both high and low beams, designed to improve forward visibility without scattering glare into oncoming drivers' eyes. With 60W nominal output per lamp and a 6500K color temperature, they deliver a bright, neutral-white light that helps you spot road details earlier.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh\/low beam functions with a sharp cutoff for safe illumination.\u003c\/li\u003e\n  \u003cli\u003e6500K pure white output for clearer road contrast.\u003c\/li\u003e\n  \u003cli\u003e60W rated power per headlight for consistent brightness.\u003c\/li\u003e\n  \u003cli\u003eAnti-flicker circuitry to prevent strobe or blinking on startup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these lights survive wet, cold, and long-haul conditions?\u003c\/h3\u003e\n\u003cp\u003eBICYACO engineered the housings with aluminum alloy heat sinks and sealed electronics to resist water and temperature extremes. The IP67 rating confirms protection against dust and immersion, while the alloy body dissipates heat to preserve LED life across long duty cycles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIP67 waterproof sealing for reliable wet-weather operation.\u003c\/li\u003e\n  \u003cli\u003eAluminum alloy body with integrated heat-dissipation fins.\u003c\/li\u003e\n  \u003cli\u003eTested for cold-weather starts and continuous highway running.\u003c\/li\u003e\n  \u003cli\u003eEstimated service life up to 50,000 hours under normal use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what comes in the box?\u003c\/h3\u003e\n\u003cp\u003eDesigned as plug-and-play for most vehicles using 4x6 inch rectangular lamps, the kit includes four H4\/9003 harnesses and straightforward instructions so you can swap lamps in about 20 minutes. The integrated anti-flicker board eliminates the need for extra resistors in most installs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4x 4x6 inch LED headlamps ready to fit standard rectangular housings.\u003c\/li\u003e\n  \u003cli\u003e4x H4 (9003\/HB2) wiring harnesses included for plug-and-play hookup.\u003c\/li\u003e\n  \u003cli\u003ePrinted instructions and built-in anti-flicker circuitry for stable output.\u003c\/li\u003e\n  \u003cli\u003eTypical install time approximately 20 minutes per vehicle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and lamp types are these compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis four-pack fits a broad range of trucks, SUVs, and older passenger cars that use 4x6 rectangular headlights. Compatibility covers popular commercial models from Kenworth, Peterbilt, Freightliner and many Chevy models plus vintage sedans and pickups that accept H4651\/H4652\/H4656\/H4666-style replacements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Kenworth T800\/T400\/T600 and Peterbilt 357\/378\/379.\u003c\/li\u003e\n  \u003cli\u003eFits Freightliner models and many Chevy trucks, Blazers, and Suburbans.\u003c\/li\u003e\n  \u003cli\u003eReplaces H4651\/H4652\/H4656\/H4666 factory sealed-beam units.\u003c\/li\u003e\n  \u003cli\u003eWorks with vehicles using 4x6 inch rectangular housings and H4 plugs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Drivers who want a straightforward upgrade from old sealed-beam or halogen 4x6 lights — especially truck owners, fleet operators, and classic-car enthusiasts — will appreciate this BICYACO kit. It’s aimed at people who need a durable, DOT-compliant LED solution that installs quickly, keeps maintenance low, and improves night-time visibility without modifying the vehicle’s wiring or housing.\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 headlights DOT approved?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the BICYACO 4x6 LED headlights are DOT-compliant for legal on-road use in the U.S. and Canada.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these require extra resistors to prevent flicker?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the lights include built-in anti-flicker circuitry and usually do not need additional resistors.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BICYACO","offers":[{"title":"Default Title","offer_id":55172499734871,"sku":"B079L55PX7","price":164.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/bicyaco-front-view-4-pack.jpg?v=1790451206","url":"https:\/\/britishgarage.co.uk\/products\/bicyaco-4x6-inch-led-headlights-4-pack-dot-rectangular-h4651-h4652-replacement-6500k-60w-ip67","provider":"British Garage","version":"1.0","type":"link"}