L2-H4 Lucas Lighting H4 LED Headlight Bulbs – 13,000 Lumens Dual Beam

Lucas Lighting L2-H4 H4 LED Headlight Bulbs – 13,000 Lumens Dual Beam

Upgrade your vehicle's factory H4 headlights with the Lucas Lighting L2-H4 LED Headlight Bulbs. Part of the Lucas Lighting L2 Series, the L2-H4 delivers 13,000 lumens per pair with a brighter, whiter and sharper LED output compared with traditional halogen lighting.

The L2-H4 is a dual-beam LED bulb, providing both low-beam and high-beam functions from the same bulb. Lucas Lighting's H4 cross-reference includes H4, 9003, 9003CB, 9003EB, 9003ST, 9003SU, 9003XV and HB2 applications. Always verify the original bulb number in your vehicle before ordering.

The L2 Series uses a dedicated outboard controller that moves critical electronics away from the LED heat source while providing wider CANBUS compatibility. This design also allows the bulb itself to remain compact while using a side-firing cooling fan, making the L2 particularly useful for applications where space behind the headlight is limited.

With IP67-rated-or-better protection, a high-quality LED chipset, instant-on operation, 10,000+ hour life expectancy and plug-and-play installation, the L2-H4 provides a premium LED upgrade compatible with both standard reflector and projector-style housings.

Key Features

• 13,000 lumens per pair
• H4 / 9003 / HB2 dual-beam LED bulbs
• Provides both low- and high-beam functions
• Brighter, whiter and sharper LED output
• High-quality LED chipset
• Dedicated outboard controller
• Side-firing cooling fan
• IP67 rated or better
• Wide CANBUS compatibility
• Designed to help avoid bulb-out errors on compatible vehicles
• Compatible with standard reflector and projector-style housings
• Plug-and-play direct replacement
• Instant-on LED illumination
• 10,000+ hour expected life
• Sold as a pair of 2 bulbs
• Intended for off-road and fog-light applications according to Lucas Lighting

H4 / 9003 / HB2 Dual-Beam Replacement

The Lucas Lighting L2-H4 is designed for vehicles using the H4 dual-beam bulb size.

H4 is a dual-beam bulb, allowing the same bulb position to provide both low- and high-beam functions.

Lucas Lighting's current H4 cross-reference includes:

• H4
• 9003
• 9003CB
• 9003EB
• 9003ST
• 9003SU
• 9003XV
• HB2

Important: Always verify the factory bulb number and vehicle application before ordering. 

L2 Series Technology

The L2 Series was developed with improvements to the electronics, cooling system and physical design.

A major feature is the dedicated outboard controller, which moves critical electronics away from the LED heat source while providing wider CANBUS compatibility.

The external controller also allows Lucas Lighting to maintain a compact bulb body and use a side-firing cooling fan. This can be particularly helpful in applications where available clearance behind the headlight housing is limited.

The result is a compact LED replacement combining strong output, active cooling, electrical compatibility and straightforward installation. 

Why Choose the L2-H4?

The L2-H4 is designed for customers looking for a substantial LED upgrade while retaining the convenience of a dual-beam H4 bulb.

With 13,000 lumens per pair, the L2-H4 provides strong LED output while maintaining a compact design and plug-and-play installation.

The combination of an outboard controller, side-firing fan, IP67+ protection and wide CANBUS compatibility makes the L2 platform a well-rounded option for compatible H4 applications.

For vehicles using H4 bulbs, the L2-H4 provides both low- and high-beam functionality without requiring separate bulb types for each function.

Quick Specifications

Specifications based on current Lucas Lighting product information.

What's Included

• 2 × Lucas Lighting L2-H4 LED Bulbs
• Outboard LED controllers
• Integrated side-firing cooling fans
• Installation components as supplied by Lucas Lighting

Installation & Compatibility

The L2-H4 is designed as a plug-and-play direct replacement for compatible H4 applications.

The L2 Series is compatible with both standard reflector and projector-style housings. Its compact bulb design and side-firing cooling fan can also be advantageous in applications with limited space behind the factory headlight. 

Because H4 bulbs provide both low- and high-beam functions from the same bulb, verify that your vehicle uses an H4/9003/HB2-style bulb before ordering.

Frequently Asked Questions

How many lumens does the Lucas L2-H4 produce?

The L2-H4 produces 13,000 lumens per pair according to Lucas Lighting's current L2 Series specifications. 

Is the L2-H4 a dual-beam bulb?

Yes. The L2-H4 is a dual-beam LED bulb, providing both low-beam and high-beam functions from the same bulb.

What bulbs does the L2-H4 replace?

Lucas Lighting's current cross-reference includes H4, 9003, 9003CB, 9003EB, 9003ST, 9003SU, 9003XV and HB2. 

Will the L2-H4 work in projector headlights?

Yes. Lucas Lighting states that the L2 Series is compatible with both standard reflector and projector-style housings. 

Does the L2-H4 have a cooling fan?

Yes. The L2 Series uses a side-firing cooling fan for active thermal management. 

Does the L2-H4 have an external driver?

Yes. The L2 Series uses a dedicated outboard controller, moving critical electronics away from the LED heat source while providing wider CANBUS compatibility. 

Is the L2-H4 CANBUS compatible?

Yes. The L2 Series features wide CANBUS compatibility designed to help avoid bulb-out errors on compatible vehicles. Certain vehicle-specific electrical systems may still require additional equipment. 

How long do the L2-H4 bulbs last?

Lucas Lighting rates the L2 Series at 10,000 hours or better. 

Are the L2-H4 bulbs plug and play?

Yes. Lucas Lighting describes the L2 Series as a plug-and-play direct replacement for compatible applications. 

Are the L2-H4 bulbs sold individually?

No. The L2-H4 is sold as a pair of two bulbs.