25W LED Lamp Cold Light Source for Microscope LG-25W
The LG-25W is a 25W LED cold light source with a built-in large-area radiator and cooling fan, designed to deliver consistent illumination for microscope applications.

Product Overview
The LG-25W is a 25W LED cold light source with a built-in large-area radiator and cooling fan, designed to deliver consistent illumination for microscope applications. It operates on 100V-240V input with 50Hz-60Hz frequency, provides 90,000 lux at 6000K color temperature, and has a 50,000-hour lamp life. The unit connects via a Φ16mm optical fiber interface and is supplied without optical fiber.
- Power15W / 25W LED Lamp
- Input Voltage100V-240V, 50Hz-60Hz
- Color Temperature6000K
- Illuminance90000Lx
- Cooling WayBuilt In Large-area Radiator and Cooling Fan
- Lamp Life50000h
Key Benefits
- 50,000-hour lamp life reduces replacement frequency and maintenance downtime
- 90,000 lux illumination ensures clear visibility under high-magnification inspection
- 6000K color temperature provides neutral white light for accurate color rendering
- Built-in radiator and cooling fan prevent heat buildup during prolonged use
- Wide input voltage range 100V-240V supports use in multiple countries without voltage converters
Application Scenarios
- Providing stable, non-heat-generating illumination for long-duration biological specimen observation
- Supporting high-magnification metallurgical inspection where thermal drift affects sample integrity
- Enabling consistent lighting in teaching labs with multiple users and extended session times
- Supplying uniform illumination for digital imaging when paired with a microscope camera
- Maintaining image clarity during extended fluorescence or polarizing microscopy sessions
Who It Is For
- Electronics manufacturers performing SMD and BGA rework with sensitive components
- University and school laboratories conducting biological or material science experiments
- Clinical and veterinary labs requiring consistent illumination for sample analysis
- Metallurgy and heat-treatment quality control departments inspecting surface defects
- Gemology and mineralogy labs needing accurate color representation under magnification
Problems It Solves
- Excessive heat from halogen or incandescent lamps damages heat-sensitive samples or affects optical alignment
- Inconsistent illumination across the field of view leads to misjudgment of surface features or defects
- Short lamp life in traditional light sources increases operational cost and downtime
- Lack of cooling in low-cost LED sources causes thermal drift and premature failure
- Incompatible optical fiber interfaces prevent easy integration with existing microscope setups
Technical Features
- 25W LED lamp with 50,000-hour lifespan
- Built-in large-area radiator and cooling fan for heat dissipation
- Input voltage 100V-240V, 50Hz-60Hz for global compatibility
- Color temperature 6000K for neutral white illumination
- Illuminance 90,000 lux at standard distance
- Optical fiber interface Φ16mm for connection to microscope illumination ports
- Compact size 230mm x 101.6mm x 150mm with 2.9kg gross weight
- Supplied without optical fiber, allowing user to select or replace fiber as needed
Specifications
| Power | 15W / 25W LED Lamp |
|---|---|
| Input Voltage | 100V-240V, 50Hz-60Hz |
| Color Temperature | 6000K |
| Illuminance | 90000Lx |
| Cooling Way | Built In Large-area Radiator and Cooling Fan |
| Lamp Life | 50000h |
| Optical Fiber Interface | Φ16mm |
| Size | 230mm x 101.6mm x 150mm |
| Gross Weight | 2.9 kgs (Optical Fiber not included) |
| Net Weight | 2.4 kgs (Optical Fiber not included) |
| Packing Size | 285mm x 230mm x 255mm |
Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.
Customization Options
- Available in 15W or 25W power variants for different illumination needs
- Optical fiber sold separately, allowing selection of length, core diameter, and connector type
- Mounting options available upon request for integration with specific microscope stands
Comparison With Other Options
| 15W LED cold light source | The LG-25W delivers 90,000 lux at 25W, offering 25% higher illuminance than the 15W model for demanding inspection tasks. |
|---|---|
| Halogen cold light source | The LG-25W produces no infrared heat, preventing sample damage and thermal drift, unlike halogen sources that emit significant heat. |
| Basic LED light source without cooling fan | The LG-25W includes a built-in cooling fan and radiator, ensuring stable performance over long sessions and extending lamp life. |
Use Guide
- Connect the cold light source to a 100V-240V power outlet with stable frequency (50Hz-60Hz)
- Use a Φ16mm optical fiber to connect the light source to the microscope's illumination port
- Ensure the cooling fan is unobstructed and the radiator surface is clean for optimal heat dissipation
- Do not operate the unit continuously beyond 8 hours without a 30-minute cooldown if used in high ambient temperatures
- Replace the optical fiber if light transmission drops below 80% of initial output
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Frequently Asked Questions
What is the lamp life of the LG-25W?
50,000 hours under normal operating conditions.
Does this unit include an optical fiber?
No. The optical fiber is sold separately to allow users to select the length and connector type for their setup.
Can I use this cold light source with a stereo or biological microscope?
Yes. The Φ16mm optical fiber interface is compatible with most standard microscope illumination ports.
Is the cooling fan noisy during operation?
The fan operates at low noise levels suitable for lab environments, but may be audible at close range during quiet sessions.
What is the color temperature and why is it important?
6000K provides neutral white light, which minimizes color distortion during inspection and documentation, especially in digital imaging.
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