The HJG M3 Mini J-A11 40W LED Headlight Bulb is a compact aftermarket motorcycle headlight upgrade designed to provide bright LED illumination while maintaining a relatively compact bulb assembly.
The J-A11 M3 Mini features a high-power LED chip, integrated heat-dissipation design and external LED driver. Its compact construction makes it suitable for motorcycles where space inside the headlight housing may be limited.
According to the product packaging, the M3 Mini series supports AC/DC 12V–80V, with a stated power range of 30W–50W and claimed light output of 3000–5000LM. This product is being offered as the 40W variant.
The bulb shown uses an H4-style three-pin connector, making it suitable for compatible motorcycles equipped with an H4 headlight socket.
Key Features
- Brand: HJG / LIU HJG
- Model: J-A11 M3 Mini
- Product Type: Motorcycle LED Headlight Bulb
- Variant: 40W
- Socket: H4-style 3-pin connector
- Working Voltage: AC/DC 12V–80V
- Packaging Power Range: 30W–50W
- Claimed Brightness Range: 3000–5000LM
- Compact M3 Mini design
- High-power LED chip
- External LED driver
- Heat-dissipation housing
- High beam / low beam headlight application
- Suitable for compatible Royal Enfield motorcycles and other bikes
Specifications
| Specification | Details |
|---|---|
| Brand | HJG / LIU HJG |
| Model | J-A11 |
| Series | M3 Mini |
| Product | LED Headlight Bulb |
| Variant | 40W |
| Socket | H4-Style |
| Voltage | AC/DC 12V–80V |
| Packaging Power Range | 30W–50W |
| Claimed Output | 3000–5000LM |
| Claimed Service Life | 30,000 Hours |
| Application | Motorcycle Headlight |
Compatibility
Suitable for motorcycles using a compatible H4 headlight bulb/socket, including:
- Royal Enfield motorcycles with compatible H4 setup
- Classic series with compatible H4 headlight
- Bullet series with compatible H4 headlight
- Electra with compatible H4 headlight
- Other H4-compatible motorcycles
Important: Compatibility depends on the motorcycle’s bulb socket, headlight housing, locking mechanism and available clearance. Please check the existing bulb before ordering.
Application
Ideal for:
- Motorcycle headlight upgrade
- H4 halogen-to-LED conversion
- Royal Enfield headlight upgrade
- High beam and low beam lighting
- Night-riding headlight upgrade
- Replacement of compatible H4 bulbs
- Compact LED headlight installations
Package Contents
- 1 × HJG J-A11 M3 Mini LED Headlight Bulb
- 1 × Attached External LED Driver
- H4-Style Connector
Installation
Professional installation is recommended.
Before installation:
- Confirm the existing headlight uses a compatible H4 socket
- Check clearance behind the headlight reflector
- Ensure the bulb is correctly locked into position
- Connect the external LED driver securely
- Check both high and low beam functions
- Adjust the headlight beam after installation
Correct beam alignment is important to provide useful road illumination without excessive glare to oncoming traffic.











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