Auxbeam H4 (9003/HB2) F15 LED Fog Lights — 20,000LM CANBUS-Ready, IP68 Weatherproof

The Auxbeam H4 (9003/HB2) F15 Series fog lights are a compact, CANBUS-ready LED upgrade delivering up to 20,000 lumens with a focused beam and advanced cooling for reliable nighttime visibility.

These Auxbeam fog lights are engineered to replace halogen H4/9003/HB2 bulbs with a high-output LED unit that fits most housings without circuit changes. Built around 24 blade-style S chips per side and a halogen-filament-position design, the F15 produces a long, even beam while keeping size and installation simple. The integrated driver and robust thermal system extend life and reduce common installation issues for modern vehicles.

How far and wide will these fog lights illuminate the road?

The F15 Series is tuned for extended reach and lateral coverage. With a 20,000-lumen rating and specially arranged chips, this lamp increases visible distance and fills peripheral zones normally dim with stock halogen bulbs.

• Up to roughly 1,200 feet of improved visibility in front of the vehicle
• Wider spread to reduce dark zones next to the road
• Designed to outperform standard halogen output by several times

Will these LEDs work with my car’s electrical system?

Auxbeam built the F15 with a CANBUS-ready driver to minimize dashboard errors and decoding faults on most modern vehicles. The unit tolerates higher startup currents and includes protections to prevent burnouts caused by inrush spikes.

• Integrated driver eliminates the need for an external CANBUS adapter in most installations
• 6A overload capacity to handle high starting current safely
• If any flicker or error occurs, Auxbeam offers decoder upgrade support

How does the lamp stay cool and last longer?

The F15 uses a multi-layer thermal architecture combining copper substrates, aviation-grade aluminum, liquid-cooling tubing, and a high-speed internal fan. This layered approach increases heat dissipation and helps the LED components run cooler for a longer service life.

• Five-layer cooling design including copper and 6063 aluminum body
• 22-piece external heat sinks plus a liquid-cooling copper tube
• 15,000 RPM silent turbofan to actively evacuate heat and extend lifespan

How easy is installation and what about weatherproofing?

Auxbeam reduced the lamp’s dimensions by about 20% so it fits more housings without trimming dust covers. The IP68-rated construction and fast 0.1-second startup make these lights suitable for daily use in wet or dusty conditions.

• 20% smaller footprint to fit 99% of fog housings without modification
• IP68 rating for water and dust resistance; reliable in harsh weather
• Quick start time and plug-and-play wiring for straightforward installation

Who is this for? The Auxbeam H4 9003 F15 Series fog lights suit drivers who want a direct-fit LED upgrade for clearer night and poor-weather visibility without major wiring changes. They’re ideal for commuters, off-road enthusiasts, and anyone replacing dim halogens with a high-output, thermally robust LED system. Note: these are not designed for DRL/Daytime Running Light circuits; Auxbeam provides a two-year warranty and free technical assistance if adapter or decoder help is needed.