BICYACO 4x6 LED Headlights 4-Pack — DOT Rectangular Replacement H4/9003, 6500K High/Low, IP67

These BICYACO 4x6 inch DOT-approved LED headlights (4-pack) are a plug-and-play rectangular replacement set that delivers bright 6500K white light with high/low beams and integrated anti-flicker circuitry for trucks and older vehicles using H4/9003 connectors.

Upgrading to modern LEDs improves night visibility, reduces power draw, and eliminates frequent bulb changes. The BICYACO kit includes four DOT-compliant 4x6 LED lamps, H4 (9003/HB2) wiring harnesses, and installation instructions so you can replace sealed-beam or halogen rectangular headlights on compatible trucks, vans, SUVs, and classic cars.

Will these plug into my vehicle without extra adapters?

Yes — these headlights are designed for straightforward swap-in installation. Each lamp includes an integrated anti-flicker circuit and the package contains H4 (9003/HB2) wiring harnesses so most vehicles accept them as direct replacements.

• Connector: H4 / 9003 / HB2 wiring harness included for plug-and-play fit
• Installation time: typically around 20 minutes per lamp
• Anti-flicker board built into each headlight to prevent PWM or alternator flicker
• Basic tools required; no additional control modules for most vehicles

How do these LEDs perform in terms of brightness and beam control?

BICYACO 4x6 LEDs produce a crisp 6500K pure white output with distinct high and low beam patterns. The lamps are engineered to create a sharp cut-off so you get wide forward illumination without excessive glare for oncoming drivers.

• Color temperature: 6500K pure white for improved contrast at night
• Beam pattern: well-defined cut-off to reduce glare
• High/low beam functionality built in for versatile road use
• 60W per lamp power rating for strong forward light output

Are these headlights durable and weatherproof for heavy-duty use?

The housings are made from aluminum alloy with an optimized heat-dissipation design, and the assemblies carry an IP67 rating to resist water and dust. That combination supports reliable operation in rain, snow, and long-haul conditions while extending LED lifespan up to approximately 50,000 hours under normal use.

• Housing: aluminum alloy heat sink for efficient thermal management
• Ingress protection: IP67 waterproof rating for harsh environments
• Rated life: up to 50,000 operating hours
• Cold-weather tested to prevent failure from freezing conditions

Who is this for? These BICYACO 4x6 LED headlights suit truck drivers, fleet owners, mechanics, and classic-car enthusiasts who want a reliable, DOT-compliant rectangular replacement that modernizes lighting performance. They’re especially appropriate for owners of Peterbilt, Kenworth, Freightliner models and many older GM, Ford, and other vehicles that use 4x6 sealed-beam headlights and an H4/9003 interface. If you need plug-and-play installation, improved nighttime clarity, and robust weather resistance without complex wiring upgrades, this 4-pack is a practical choice.