L-3A(Dot Type)
The L-3A(Dot type) is a sewing machine laser light with a dot-shaped beam, operating on 85V-265V input and available with EU or US plug. It mounts via magnet base or screw and emits either red or green laser light. The dot shape projects a single precise point at the needle position, useful for alignment on fabric. The laser lamp size is φ12*48mm. This model is designed for consistent positioning in industrial and home sewing environments where a focused beam is needed.
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Technical Data
| Model | L-3A(Dot type) |
|---|---|
| Product | Sewing machine laser light |
| Input Voltage | 85V-265V |
| Laser Color | Red / Green |
| Laser Shape | Dot Type |
| Laser Length | φ3MM |
| Laser Lamp Size | φ12*48mm |
| Installation | Magnet Base / Screw installation |
| Available Plug | EU plug / US plug |
Why Buyers Choose This Model
Key Benefits
- 85V-265V input allows use across 110V and 220V systems without voltage conversion
- Red or green laser color choice improves visibility on different fabric types
- Dot-shaped beam provides a precise alignment point at the needle position
- Magnet base or screw installation offers flexible mounting on machine heads
- Compact size φ12*48mm fits tight spaces on sewing machine arms
- No moving parts or lenses to wear or dirty, ensuring long-term beam stability
Problems It Solves
- Overhead lighting does not project a visible point at the needle plate
- Manual alignment with markings or thread is slow and error-prone
- Laser lights with large beam shapes or diffuse spots lack precision for fine work
- Mounting systems that require tools or permanent fixtures limit repositioning
- Laser lights that only work on one voltage require separate stock for different markets
Who It Is For
- Garment factory maintenance teams replacing or upgrading laser alignment tools
- Sewing machine dealers offering laser lights as an accessory during machine sales
- Home sewing retailers selling replacement laser lights for older machines
- Sewing machine manufacturers integrating laser lights as OEM components
- Quilting and craft studios needing accurate needle placement on delicate materials
Where It Is Used
- Industrial sewing lines requiring precise needle alignment on fine or stretch fabrics
- Home sewing and quilting where a small, focused laser point helps with pattern matching
- Machine setup and calibration stations where consistent alignment is needed
- Factories using mixed 110V and 220V power supplies across different production zones
- Sewing machine dealers installing laser lights during machine commissioning
Technical Features
- Dot-type laser beam
- Red or green laser color
- 85V-265V input voltage range
- Magnet base or screw mounting
- Laser lamp size φ12*48mm
- Available with EU plug or US plug
Materials
- Laser diode module with red or green emitter
- Moulded plastic housing with metal magnet base
- Screw mounting bracket with metal threads
- Cable with EU or US plug depending on variant
- Internal driver circuit for stable laser output
Quality Control
- Every lamp receives a 2-hour high-voltage test before it leaves the facility
- LED chips are sourced from world-known brands rather than unbranded stock
- Laser output and beam shape are checked on assembled units
- Visual check of the housing, magnet base, cable, and plug before packing
Customisation Options
- OEM logo on the housing or magnet base
- Cable length and plug type to suit the destination market
- Own-brand retail or bulk packaging
- Laser color selection by order (red or green)
How To Use It
- Mount the laser on the machine head using the magnet base or screw installation
- Position the laser so the dot aligns with the needle tip when the needle is at its lowest point
- Ensure the laser beam hits the fabric just ahead of the needle, not in the operator's eyes
- Use red laser on dark fabric and green on light fabric for better visibility
- Check that the supply voltage is within the 85V-265V range before first use
- Clean the laser lens with a dry cloth if dust or lint reduces beam visibility
How It Is Made
Laser diode and driver assembly
Housing and magnet base fitting
Cable and plug installation
Laser beam alignment and output test
Ageing and high-voltage testing
Packing
How It Compares
| L-1A-2M Line Type Laser | The L-3A provides a single dot for precise alignment; the L-1A-2M projects a 2-meter line for longer seam guidance, which is better for straight stitching but less accurate for needle placement. |
|---|---|
| L-2A-2M Cross Type Laser | The L-3A uses a dot for exact needle point marking; the L-2A-2M projects a cross for centering, which is useful for symmetrical stitching but not for single-point alignment. |
| Manual needle alignment with thread | The L-3A gives a consistent, visible point at the needle position, eliminating the need to estimate alignment by eye or thread tension. |
Industries Using This Product
Questions About This Product
Can the L-3A run on both 110V and 220V
Yes. The input range is 85V-265V, so the same lamp works on either voltage without a converter.
What is the laser beam shape
The L-3A produces a dot-shaped beam with a diameter of φ3MM at 1.5M to 2M distance.
What colors are available
Red or green laser color. Both are available depending on order preference.
How is it mounted
It can be mounted with a magnet base or by screw installation on the machine head.
Can we have our own logo and packaging
Yes. We provide OEM versions with your logo on the housing or magnet base and your own packaging.
What plug types are available
The lamp is available with either EU plug or US plug, depending on the market requirement.
Quote L-3A(Dot Type)
Tell us the quantity, the branding you need and the market it is going to. We will confirm what applies and quote it.