🔧 CMBC1860-1157 T20 BAY15D HP 8

Dual Color LED Bulb | Active Cooling | Engineered for 24V Commercial Vehicles

The CMBC1860-1157 T20 BAY15D HP 8 is a next-generation high-power dual-color LED bulb specifically engineered for commercial vehicles, heavy-duty fleet systems, and advanced automotive lighting applications.

Designed with a robust thermal management architecture, active cooling technology, and high-efficiency 1860 ceramic LEDs, this model delivers exceptional brightness, stable output, and long-term reliability under demanding operating conditions.

Built for both 12V and 24V vehicle systems, the CMBC1860-1157 is an ideal solution for European trucks, buses, industrial vehicles, and fleet applications requiring powerful illumination and dependable performance.

⚙️ Advanced Thermal Management Structure

The CMBC1860-1157 adopts a high-efficiency thermal conduction design using:

• Aluminum core PCB
• Aluminum heat dissipation module
• Electroplated aluminum heat sink
• Integrated airflow cooling structure

The aluminum PCB is tightly bonded to the aluminum module, creating an efficient thermal path that rapidly transfers heat away from the LED chips.

Benefits:

• Superior heat dissipation performance
• Stable output during continuous operation
• Reduced thermal degradation
• Extended product lifespan
• Improved reliability in high-temperature environments

👉 Designed specifically for heavy-duty and commercial vehicle applications.

🧊 Active Cooling Fan System

To support high-power operation, the CMBC1860-1157 is equipped with a built-in micro cooling fan located at the top of the bulb.

Cooling System Features:

• High-speed active cooling fan
• Enhanced airflow circulation
• Faster heat evacuation
• Stable LED junction temperature
• Improved thermal stability

This active cooling structure is critical for maintaining consistent brightness and long-term reliability during extended operation.

👉 Essential for sustaining high-output performance up to 1900LM.

💡 1860 Flip-Chip Ceramic LED Technology

The CMBC1860-1157 utilizes advanced 15W high-power ceramic package 1860 LEDs.

A total of 8 LEDs are integrated into the bulb structure:

• 4 White LEDs
• 4 Amber LEDs

Advantages of Flip-Chip Technology:

• Higher luminous efficiency
• Stronger light penetration
• Lower thermal resistance
• Improved heat transfer
• Enhanced long-term durability
• More stable illumination performance

🔄 Dual Color Function (White + Amber)

The CMBC1860-1157 features an advanced dual-color lighting system combining:

White DRL Function (Low Pin Position)

• 4 White LEDs
• Connected to the BAY15D low-position contact
• Low-current design
• Suitable for continuous illumination

Specifications:

• Power: 10W
• Brightness: 1600LM
• Function: Daytime Running Light (DRL)

Amber Turn Signal Function (High Pin Position)

• 4 Amber LEDs
• Connected to the BAY15D high-position contact
• High-current design
• Designed exclusively for turn signal applications

Specifications:

• Power: 21W
• Brightness: 1800LM
• Function: Turn Signal Light

⚠️ Important Notice:
The amber LED circuit is designed for turn signal use only and is not intended for continuous illumination.

🔥 Optional Full Red Version

An optional Full Red LED Version is also available for rear lighting applications.

Full Red Configuration:

• Low brightness mode → Tail / Running Light
• High brightness mode → Brake Light

Ideal Applications:

• Rear combination lamps
• Brake & tail light systems
• Commercial vehicle rear lighting
• 1157 dual-function replacement

👉 Excellent replacement for traditional dual-filament incandescent bulbs.

🌟 High Brightness & Stable Output

The CMBC1860-1157 delivers significantly higher brightness compared to conventional incandescent bulbs.

Performance:

• White Light Output: 1600LM
• Amber Light Output: 1800LM
• Total Maximum Output: Up to 1900LM

The PWM constant current driver ensures:

• Stable illumination
• Reduced flickering
• Improved efficiency
• Reliable output under voltage fluctuations

⚡ 10–30V DC Wide Voltage Design

The CMBC1860-1157 is engineered with a wide voltage input system compatible with both 12V and 24V vehicle platforms.

Suitable Applications:

• Passenger vehicles
• Trucks
• Buses
• Fleet vehicles
• Industrial vehicles
• Agricultural machinery
• Construction equipment

Advantages:

• Stable operation under fluctuating voltage
• Improved system compatibility
• Reliable performance in commercial environments

🖥️ CANbus Compatible

Built-in CANbus decoder technology helps improve compatibility with modern vehicle electrical systems.

CANbus Features:

• Reduces dashboard warning messages
• Helps minimize hyper-flash
• Improves signal stability
• Enhances compatibility with European vehicles

👉 Suitable for many BMW, Mercedes-Benz, Audi, Volkswagen, and commercial fleet systems.

🛡️ Superior Mechanical Reliability

The CMBC1860-1157 features a full aluminum structural design optimized for harsh operating environments.

Mechanical Advantages:

• High vibration resistance
• Shock-resistant structure
• Improved durability
• Stable operation under heavy-duty use
• Long operating lifespan

👉 Perfect for commercial fleet and industrial applications.

📐 Socket Type

Base Type:

• BAY15D / 1157
• Dual Contact Bayonet Base

Please confirm:

• Base type
• Product dimensions
• Vehicle compatibility

before installation.

🎨 Available LED Colors

Available color options include:

• Cool White
• Warm White
• Amber

Additional custom colors may be available upon request.

💼 OEM / ODM Service

CMBC1860-1157 is available for:

• OEM production
• ODM customization
• Private label projects
• Commercial fleet applications
• Custom voltage or lighting configurations

We welcome global distributors, fleet solution providers, and automotive lighting partners to contact us for further cooperation.

⚠️ Engineering Important Notice

The amber turn signal circuit uses a high-current design intended specifically for signal applications.

Please Note:

• Designed for turn signal use only
• Not suitable for continuous lighting
• Relay may be required in some systems
• Proper installation is recommended

👉 Always verify vehicle compatibility before installation.