
H-30D
The H-30D is a sewing machine working light with 30 SMD LEDs and knob-controlled brightness adjustment, drawing 3W. It operates on either 110V or 220V, so a factory or importer can use one model across regions with different mains voltages. The knob adjustment allows precise control of light output, which is useful when switching between light and dark fabrics. At 30 LEDs, it provides more illumination than lower-LED models but is less intense than the 36 LED H-36D. The design is intended for consistent, reliable lighting on industrial sewing machines in production environments.
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Technical Data
| Model | H-30D |
|---|---|
| Product | Sewing machine working light |
| Input Voltage | 110V/220V |
| Power | 3W |
| LED Quantity | 30 SMD LED |
| Brightness Adjustable | Yes |
| Means of Adjustment | Knob |
Why Buyers Choose This Model
Key Benefits
- 110V/220V operation means one model covers both major voltage standards, reducing spare parts complexity
- 30 SMD LEDs deliver focused light on the needle plate, improving visibility on fine stitching and dark fabric
- Knob dimming allows gradual adjustment of brightness, suited to varying fabric colours and operator preference
- 3W power draw keeps energy cost low across multiple machines
- Robust knob mechanism is less prone to failure from lint and oil than touch switches
- Fixed mounting base holds the lamp securely on the machine head
Problems It Solves
- Overhead factory lighting casts shadows over the needle plate, making stitching difficult
- Fixed-brightness lamps are too harsh on light fabric and too dim on dark fabric
- Knob dimmers are more reliable than touch switches in oily, lint-prone environments
- Stocking separate 110V and 220V lamps increases inventory and shipping complexity
- Lamps that cannot be adjusted in brightness force operators to work in suboptimal light
Who It Is For
- Garment factory maintenance managers replacing lamps across a mixed-voltage floor
- Sewing machine dealers who need a single lamp model for multiple export markets
- Importers sourcing a universal voltage lamp for global distribution
- Sewing machine manufacturers specifying a standard task light for OEM fitment
Where It Is Used
- Industrial sewing lines working with dark or navy fabric where overhead lighting is insufficient at the needle
- Topstitching and buttonhole stations requiring consistent, adjustable light on the presser foot
- Factories operating in mixed-voltage regions such as Southeast Asia or Latin America
- Maintenance teams replacing bulbs or lamps on machines without needing voltage-specific variants
- Sewing machine dealers installing lights at point of sale for customers in different countries
Technical Features
- 30 SMD LED array
- Knob-controlled brightness adjustment
- Dual voltage input of 110V/220V
- 3W power draw
- Fixed mounting base
- Adjustable output across the full range
Materials
- SMD LED array on an aluminium-backed board for heat dissipation
- Moulded lamp head and knob housing
- Metal mounting base with screw holes for secure attachment
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
- Knob dimming function is tested across the full range on assembled units
- Visual check of the lamp head, cable, and base before packing
Customisation Options
- OEM logo on the lamp head or knob housing
- Cable length and plug type to suit the destination market
- Own-brand retail or bulk packaging
- Mounting bracket variants for specific machine heads
How To Use It
- Mount the base on the machine head or arm using the provided screws, ensuring clearance from the handwheel and thread path
- Adjust the knob to set brightness to the lowest level that clearly shows the stitch and fabric
- Avoid over-tightening the knob; it should turn smoothly and hold position
- Clean the lens with a dry cloth; lint buildup reduces effective light output
- Verify the supply voltage is either 110V or 220V before connecting
How It Is Made
LED board assembly and soldering
Driver and knob switch assembly
Lamp head and base fitting
Ageing and high-voltage testing
Packing
How It Compares
| H-20A 20 LED task light | The H-30D has 30 LEDs and a knob dimmer, making it brighter and more adjustable than the H-20A, which is suited to general-purpose use. |
|---|---|
| H-36D 36 LED touch dimmable | The H-30D uses a knob for adjustment, which is more reliable in oily environments than a touch switch. The H-36D has more LEDs and a gooseneck for repositioning. |
| Overhead bay lighting | A machine-mounted lamp delivers light directly where the operator works, unlike overhead lighting that often creates shadows. |
Questions About This Product
Can the H-30D run on both 110V and 220V
Yes. The lamp is designed for 110V or 220V input, so it works on either voltage without a switch or adapter.
How is the brightness adjusted
By a physical knob on the lamp head. Turning the knob changes the brightness level.
How much power does it draw
3W.
What is the difference between the H-30D and the H-20A
The H-30D has 30 LEDs and a knob dimmer, while the H-20A has 20 LEDs and no dimming control.
Can we have the lamp with our own logo and packaging
Yes. We produce OEM versions with your logo on the lamp head or knob housing and your own packaging.
What certification does the lamp carry
Please ask us for the current certification documents for your market and we will send what applies to this model.
Quote H-30D
Tell us the quantity, the branding you need and the market it is going to. We will confirm what applies and quote it.





