H11 2Stroke 4.0 LED Bulbs (Yellow)

Upgrade your factory halogen lighting with the Morimoto 2Stroke 4.0 H11 Yellow LED Bulbs LED2020-Y, combining the advanced optical engineering of the fourth-generation 2Stroke platform with a distinctive yellow output ideal for fog lights and adverse-weather applications.

Engineered around beam quality rather than raw brightness alone, the 2Stroke 4.0 uses an ultra-thin 1.45mm emission surface, precise LED positioning, an adjustable base, and advanced thermal management to deliver controlled, usable illumination from compatible H11 optics.

Yellow LED Output

The LED2020-Y produces a distinctive yellow light output, making it an excellent choice for enthusiasts looking to upgrade their fog lights or create a motorsport-inspired lighting setup.

Yellow illumination is particularly popular for driving in challenging conditions such as:

• Fog
• Heavy Rain
• Snow
• Dust
• Poor-Visibility Conditions

It also provides an unmistakable appearance that separates your vehicle from conventional white LED lighting.

Beam Pattern Comes First

Brightness alone doesn't make a good LED bulb.

The 2Stroke 4.0 is engineered to closely replicate the position and geometry of the original halogen filament, allowing compatible factory reflector and projector optics to properly capture and distribute the increased LED output.

This helps produce a more controlled beam pattern while reducing unnecessary light scatter and glare for other road users.

Ultra-Thin 1.45mm Emission Surface

One of the most important advancements in the 2Stroke 4.0 is its incredibly thin 1.45mm LED emission surface.

The closer the LED emitters can replicate the dimensions and positioning of a halogen filament, the more effectively the original headlight or fog light optics can focus the light.

This filament-sized accuracy helps improve:

• Beam focus
• Light distribution
• Cutoff definition
• Optical efficiency
• Usable illumination

Advanced PCB Technology

Achieving such a narrow LED emission surface requires advanced circuit-board engineering.

Morimoto developed an ultra-thin PCB that allows the LED emitters to be positioned precisely where they're needed while maintaining the electrical and thermal performance required for a high-output automotive LED bulb.

Optimized Light Distribution

Rather than chasing oversized lumen numbers, Morimoto designed the 2Stroke 4.0 around usable light.

Precise LED positioning helps direct the output into the correct areas of compatible factory optics, allowing the reflector or projector to distribute the light where it's actually needed.

The result is improved illumination without simply flooding the road with uncontrolled light.

Adjustable Base

LED orientation plays an important role in achieving the best possible beam pattern.

The 2Stroke 4.0 features an adjustable base that allows the bulb to be properly clocked inside the housing.

This makes it possible to fine-tune the position of the LED emitters for different reflector and projector designs, helping achieve optimal beam performance for your application.

Advanced Cooling System

High-output LEDs generate heat, and controlling that heat is essential for maintaining performance and longevity.

The 2Stroke 4.0 incorporates an integrated active cooling system designed to efficiently remove heat from the LED assembly.

This helps prevent heat soak, maintain consistent output, and protect the LEDs during extended operation—even in demanding driving conditions.

Ideal for Fog Light Applications

The combination of yellow output, precise beam control, and compact H11 fitment makes the LED2020-Y particularly well suited for compatible fog light housings.

For enthusiasts looking to combine modern LED performance with the classic yellow fog-light appearance, the 2Stroke 4.0 provides a premium solution.

FEATURES & BENEFITS

• Yellow LED Output: Distinctive appearance ideal for fog and auxiliary lighting
• Fourth-Generation 2Stroke: Morimoto's advanced LED replacement bulb platform
• H11 Fitment: Designed for compatible H11 halogen applications
• 1.45mm Emission Surface: Ultra-thin design closely replicates halogen filament geometry
• Precision LED Placement: Helps maintain proper optical focus
• Optimized Beam Pattern: Designed to maximize usable illumination
• Reduced Unwanted Glare: Precise emitter positioning helps control light distribution
• Advanced PCB Technology: Enables extremely narrow LED emitter positioning
• Adjustable Base: Allows precise clocking for different optical systems
• Active Cooling System: Efficiently manages heat during operation
• Consistent Performance: Designed to minimize heat-related output loss
• Compact Construction: Engineered for installation in compatible factory housings
• Instant-On LED: Immediate full-intensity illumination
• Fog Light Friendly: Excellent option for compatible H11 fog light applications
• Premium Morimoto Engineering: Purpose-built for automotive lighting enthusiasts

SPECIFICATIONS

Brand: Morimoto
Series: 2Stroke 4.0
SKU: LED2020-Y
Bulb Size: H11
Technology: LED
Output Color: Yellow
Emission Surface: 1.45mm
Base: Adjustable
Cooling: Active Cooling System
Application: Compatible H11 Headlight / Fog Light Systems

IMPORTANT FITMENT NOTE

LED replacement bulb performance depends heavily on the design of the vehicle's original optics. Always verify H11 bulb compatibility, housing clearance, electrical compatibility, and local regulations before installation.

Some vehicles may require additional CANBUS modules, anti-flicker components, or dust-cap modifications for proper operation.

Upgrade to the Morimoto 2Stroke 4.0 H11 Yellow LED2020-Y and combine precise beam control, advanced LED technology, and distinctive yellow illumination in one premium lighting upgrade.

Technical Specifications

• Luminous Flux: 2,600lm
• Power: 18-22.5W
• Input Voltage: 9V-16V DC
• Material: Electroplated Aluminum
• Current: 1.5-1.88A @ 12V DC
• Light Source: NLW2260CV1 2500K (Yellow)
• Patent: US Patent #11079090

What's Included

• LED Bulb: 1x H11 2Stroke 4.0 LED Bulb
• Warranty: Lifetime Limited

Compatibility

• BASE/FITMENT: H11/H9/H8
• APPLICATION: HID and LED bulbs are street legal in the USA for Fog Light use only. Not compliant with DOT / FMVSS108 and not street legal in the USA for Headlights. Legal for off-road use in Snowmobile and ATV headlights and off-road racing use only auxiliary or forward lighting. International street legality varies by country. Note: This usage regulation is not unique to Morimoto bulbs. All LED and HID bulbs from all other brands, regardless of marketing claims, are prohibited from street use in halogen headlights in the USA.
• HOMOLOGATION ECE: No
• DOT/SAE/FVMSS108: NO (NOT STREET LEGAL IN HEADLIGHTS IN USA)
• Do I need PWM / Anti-Flicker Modules?: When using in Fog Lights: Unlikely.
• With low beams that double as Daytime Running Light: Likely.
• With high beams that double as Daytime Running Light: Likely.
• When the vehicle is late model American (Chrysler, Dodge, Jeep, Ford, GM): Likely.

Installation Guide

Product Video