SEALIGHT 9005/HB3 & 9006/HB4 LED Bulbs Pack of 4 — 6500K White, 1:1 Mini Size, Cooling Fan for Clear Night Driving

SEALIGHT's 9005/HB3 and 9006/HB4 LED combo pack provides a plug-and-play upgrade that produces crisp 6500K white light, a focused factory-matching beam, and long-life cooling for clearer night driving.

This four-bulb kit swaps directly into HB3/HB4 sockets for ATVs, UTVs, and many vehicles, delivering a significant boost in brightness while keeping the original beam shape. Designed as a compact 1:1 replacement, the bulbs pair high-density LED chips with an integrated cooling system and smart electronics to reduce flicker and minimize compatibility issues.

How much brighter are these SEALIGHT bulbs compared to factory lamps?

These LED bulbs use high-density CSP chips to increase visible output substantially over standard halogen bulbs. You'll get a whiter, more concentrated beam that helps extend visibility range without altering the cutoff or creating scattered glare.

• High-performance 16-chip LED array for greatly increased lumen output.
• 6500K cool white color for higher contrast and clearer road details.
• 1:1 beam mapping to maintain original pattern and avoid blinding oncoming drivers.

Will they fit my vehicle and how easy is installation?

SEALIGHT designed these bulbs to be the same physical size as OEM HB3/HB4 bulbs, enabling a straightforward swap. The kit is plug-and-play with no additional drivers or complex wiring required for most vehicles.

• Direct 1:1 sizing for HB3 (9005) and HB4 (9006) sockets.
• No external driver—installs in minutes with factory connectors.
• Includes enhanced IC to prevent common dashboard warnings on most systems.

How do they manage heat and durability for long-term use?

Thermal management combines a hollow aluminum body and a high-speed, low-noise fan to keep LED junction temperatures low during sustained operation. The cooling approach plus waterproof construction contributes to extended service life even in tough conditions.

• Aerospace-grade aluminum housing for efficient heat transfer.
• 25,000 rpm silent cooling fan to maintain stable output.
• IP68 waterproof rating and long expected lifespan for reliable performance.

Are these bulbs compatible with my vehicle’s electronics and night-time safety?

Built-in smart IC helps the bulbs communicate with most vehicle electrical systems to avoid flicker or false fault messages. A small number of highly sensitive vehicles might still need an additional CANBUS decoder, but SEALIGHT provides support if that occurs.

• On-board smart IC reduces warnings, flicker, and radio interference.
• Canbus-ready for 99% of vehicle systems; decoder may be needed in rare cases.
• Engineered beam shape reduces glare while improving forward illumination.

Who is this for? Drivers or off-road riders who want a simple, high-output replacement for HB3/HB4 halogen bulbs will appreciate this SEALIGHT kit. It's suited to people who need brighter, whiter light with minimal installation fuss—especially owners of ATVs, UTVs, and passenger vehicles seeking a focused beam, durable construction, and broad electrical compatibility.