IPF H4 9003 HB2 F341HLB F-Series LED Bulbs 6500K | Pack of 2

IPF H4 9003 HB2 F341HLB F-Series LED Bulbs 6500K | Pack of 2

The IPF H4 9003 HB2 F341HLB F-Series LED Bulb Pack delivers up to 5400 lumens on high beam and 3800 lumens on low beam of crisp 6500K daylight-white illumination. Designed and engineered in Japan by IPF Corporation, these all-in-one dual-beam LED lamps feature an integrated SEPIC driver unit and patented LACH (LED Air-Cooling Hole) technology to prevent thermal degradation and chip burnout. Built-in high beam indicator circuits and advanced EMC electromagnetic shielding ensure seamless integration with 12V/24V vehicles, hybrids, and EVs without dashboard warning errors or radio noise. Available through HID Concept.com, this 2-pack offers an OEM-grade plug-and-play upgrade for uncompromised night driving clarity.

Key Features & Benefits

• High Output Dual Hi/Lo Beam: Emits up to 5400 lumens on high beam and 3800 lumens on low beam per set, delivering a 136% performance increase over standard halogen bulbs.
• Integrated All-In-One Driver Unit: Combines the LED driver directly into the bulb housing for an effortless, space-saving installation without external driver boxes to secure.
• Patented LACH Cooling Structure: Employs a chimney-effect LED Air-Cooling Hole coupled with an extruded A6063 aluminum heatsink and active cooling fan to rapidly dissipate heat.
• Dual CPS Chip Placement: Utilizes Dual Copper Post Structure technology to position LED emitters precisely where factory halogen filaments rest, maintaining an ideal beam cutoff and preventing glare.
• Universal 12V / 24V & Hybrid Compatibility: Fully compatible with 12V passenger cars, 24V commercial trucks, hybrid systems, EVs, PHEVs, and idle-stop vehicles.
• Advanced EMC Noise Reduction & High Beam Circuit: Incorporates Japanese hybrid capacitors, choke coils, and built-in high beam indicator bypass circuits to preserve full dashboard gauge functionality and eliminate FM radio static.

Vehicle Compatibility Section

The IPF F341HLB F-Series LED conversion set is engineered specifically for vehicles equipped with dual-filament H4, 9003, or HB2 headlight housings.

Cross-Reference Bulb Socket Compatibility:

• Base Size: P43t.
• Equivalent Sizes: H4, 9003, HB2, 9003LL, H4LL.
• OEM Interchange Part Numbers: N-905-616-01, YS4Z-13N021-AA, 33111-SR3-A01, 26294-8991C, 63-21-7-162-953.

Popular Vehicle Applications: Widely used for headlight low/high beam combination assemblies on classic and modern vehicles, including Toyota (Tacoma, 4Runner, FJ Cruiser, Yaris), Honda (Fit, Civic, CR-V), Subaru (Impreza, Crosstrek, Forester), Nissan (Frontier, Xterra), Jeep (Wrangler YJ/TJ), Ford, Chevrolet, Hyundai, Kia, Volkswagen, and BMW.

System Compatibility Note: Thanks to the integrated high beam indicator circuit, these bulbs resolve the common "no high beam indicator on dash" issue found in many Japanese and domestic vehicles when switching to LED.

Performance & Visibility Section

Factory halogen H4/9003 bulbs produce a dim, yellowish beam that limits down-road visibility and leaves dark zones in low-beam mode. Upgrading to the IPF H4 9003 F341HLB F-Series LED kit transforms nighttime driving by producing 5400 lumens of high-beam output and 3800 lumens of low-beam clarity. By utilizing IPF's precision Dual CPS optical alignment and high-transmittance resin body, light is directed squarely onto the road surface. Drivers experience wider shoulder coverage, sharper cut-off lines, and greater contrast without scattering blinding glare into oncoming traffic.

OEM Quality & Reliability Section

Purchasing genuine Japanese IPF products from HID Concept.com ensures authentic manufacturing quality tested under strict automotive OEM standards. Established in 1946, IPF Corporation is an industry leader in motorsports optics and primary lighting. Unlike generic online LED bulbs that overheat or trigger electrical glitches, the F341HLB uses a SEPIC constant current driver, electrostatic/pulse protection, and muddy salt water endurance testing to withstand severe road environments, temperature shifts, and heavy vibration.

Installation Information

Installing the IPF H4 9003 HB2 F341HLB F-Series LED Bulbs is a simple, 100% plug-and-play procedure. Begin by turning off the vehicle's ignition and headlights, allowing the engine bay and housing to cool down. Disconnect the three-prong factory wire connector from the rear of the stock H4 bulb, unhook the metal retaining clip, and remove the halogen lamp. Align the three tabs of the IPF F341HLB LED base into the headlight housing, reattach the factory metal spring clip, and slide the rubber dust boot back over the rear of the bulb. Because the driver unit is fully integrated into the compact lamp body, simply plug the stock 3-prong harness directly into the IPF bulb. Turn on your headlights to verify low beam cut-off, high beam engagement, and dashboard indicator operation.

Note: Depending on the vehicle may trigger an error message and/or a hyperflash. In case this happens, please install a CANbus to eliminate the error. 

Application Note: LED bulbs from all brands are not compliant with DOT / FMVSS108 and are not street-legal in the USA. LED bulbs are only legal in the USA for Fog Light use. LED bulbs are legal for off-road use in ATV, snowmobile, and off-road racing use. International law and regulations vary by country.

Technical Specs