Introduction
The HAYEAR 144 LED Ring Light (Model HY-144B) is designed to provide optimal illumination for stereo microscopes and cameras. It offers intense, focused, and shadow-free lighting, essential for detailed inspection and quality control tasks. This manual provides instructions for the proper setup, operation, and maintenance of your device.
What's in the Box
- 1 x 144-LED Ring Light
- 1 x Power Adapter

Image: The 144-LED Ring Light and its accompanying power adapter.
Features
- 144 Bright White LED Bulbs: Provides uniform, bright white light for clear viewing.
- Adjustable Brightness: Equipped with a dimmer switch for 0-100% brightness control.
- Shadow-Free Illumination: Designed to deliver intense and focused light without shadows.
- Long Lifespan: LED bulbs are rated for approximately 100,000 hours of life.
- Wide Compatibility: Suitable for lenses with a diameter between 30mm and 63mm.

Image: Detailed view of the ring light showing the maximum mounting diameter (63mm), tighten screws, ON/OFF switch, and brightness adjustment knob.
Setup Instructions
- Attach the Ring Light: Carefully place the 144-LED Ring Light onto the objective lens of your stereo microscope or camera. Ensure the lens diameter is within the compatible range of 30mm to 63mm.
- Secure the Light: Use the three tightening screws located around the inner ring of the light to firmly secure it to the microscope lens. Turn the screws clockwise until the light is stable.
- Connect Power: Plug the power adapter into the DC input port on the side of the ring light. Then, plug the power adapter into a standard 100-240V, 50-60Hz electrical outlet.

Image: The 144 LED Ring Light correctly installed on a stereo microscope, illuminating a circuit board.
Operating Instructions
- Power On/Off: Locate the ON/OFF switch on the side of the ring light. Flip the switch to the 'ON' position to turn on the light. Flip it to 'OFF' to turn it off.
- Adjust Brightness: Use the dimmer knob, also located on the side of the ring light, to adjust the intensity of the illumination. Rotate the knob clockwise to increase brightness and counter-clockwise to decrease it. The brightness is continuously adjustable from 0% to 100%.

Image: A close-up view of the 144 LED Ring Light providing bright, uniform illumination to a sample under a microscope.
Demonstration Video
Video: Official product video demonstrating the HAYEAR 144 LED Ring Light, showing its features, installation on a microscope, and brightness adjustment.
Maintenance
- Cleaning: Ensure the device is powered off and unplugged before cleaning. Use a soft, dry cloth to wipe the exterior of the ring light. Do not use liquid cleaners or abrasive materials.
- Storage: Store the ring light in a dry, dust-free environment when not in use.
- Handling: Avoid dropping or subjecting the device to strong impacts, as this may damage the LED bulbs or internal components.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. |
|
|
| Light is dim or flickers. |
|
|
Specifications
- Model Number: HY-144B
- LED Quantity: 144 bright white LED bulbs
- Lifespan: Approximately 100,000 hours
- Brightness Control: 0-100% adjustable, variable intensity
- Power Input: 100-240V, 50-60Hz
- Compatible Lens Diameter: 30mm - 63mm
- Connectivity Technology: USB (for power adapter connection)
- Color: Black
Warranty Information
This HAYEAR product is covered by a 1-year warranty from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
Support
For further assistance, technical support, or warranty inquiries, please visit the official HAYEAR store or contact your retailer. You can find more information at the HAYEAR Store on Amazon.