156 Adjustable LED Ring Light Stereo Microscope AM-156-81
The AM-156-81 is a 156-piece adjustable LED ring light designed for stereo microscopes with an 81mm inner diameter.

Product Overview
The AM-156-81 is a 156-piece adjustable LED ring light designed for stereo microscopes with an 81mm inner diameter. It provides a continuous brightness adjustment from 10% to 100% and delivers 10,000 to 15,000mcd of high-brightness cold white light at 8000-30000K, suitable for consistent illumination across inspection, assembly and teaching tasks. The ring light operates on AC90-240V input and outputs 12V white light, with a maximum power draw of 15W. It fits standard 81mm microscope heads and has a 27mm overall height.
- Light sourceLED lamp beads
- Lamp bead sizeF3
- Input voltageAC90-240V
- Output voltage12V white light
- Maximum output power15W
- Working distance40-160mm
Key Benefits
- 156 units supplied as a bulk pack for consistent lighting across multiple workstations
- 10,000-15,000mcd brightness with 8000-30000K cold white light improves contrast and detail visibility
- 10%-100% continuous brightness adjustment allows fine-tuning for different materials and magnifications
- 12V output at 15W maximum power ensures stable illumination without overheating
- 81mm inner diameter fits standard stereo microscope heads with no adapter needed
- Metal lamp holder provides durability and heat dissipation during long inspection sessions
Application Scenarios
- Uniform lighting across 156 inspection benches in an electronics rework facility
- Consistent illumination during SMD component placement and soldering under stereo microscopes
- Teaching labs where multiple students use identical microscope lighting setups
- Quality control stations inspecting small parts with varying surface reflectivity
- Jewellery and watchmaking workshops requiring stable, glare-free lighting for fine detail
Who It Is For
- Electronics manufacturers using stereo microscopes for SMD and BGA rework
- Teaching laboratories requiring uniform lighting across multiple student microscopes
- Quality inspection teams in precision assembly and optical component manufacturing
- Jewellery and watchmaking workshops needing consistent illumination for micro-assembly
- Research labs performing repetitive visual inspections with multiple microscope setups
Problems It Solves
- Inconsistent lighting between microscopes leads to variable inspection results and operator fatigue
- Fixed brightness ring lights cannot adapt to different materials, surface finishes or magnifications
- Non-adjustable lights cause glare or under-illumination in critical inspection zones
- Lack of standardized lighting across multiple workstations makes training and quality checks harder
- Plastic lamp holders degrade under heat, leading to premature failure in continuous-use environments
Technical Features
- LED lamp beads with F3 size for high light output and even distribution
- Input voltage AC90-240V, compatible with global power supplies
- Output voltage 12V white light for stable, low-heat operation
- Maximum output power 15W, suitable for continuous use
- Working distance range 40-160mm, fits standard stereo microscope heads
- Single white light brightness 10,000-15,000mcd with 8000-30000K color temperature
- Brightness continuously adjustable from 10% to 100%
- Metal lamp holder for heat resistance and mechanical durability
- 156 units supplied as a single pack for bulk deployment
Specifications
| Light source | LED lamp beads |
|---|---|
| Lamp bead size | F3 |
| Input voltage | AC90-240V |
| Output voltage | 12V white light |
| Maximum output power | 15W |
| Working distance | 40-160mm |
| Product inner diameter | 81mm |
| Product outer diameter | 118mm |
| Overall height | 27mm |
| Number of products | 156 |
| Single white light brightness | 10000-15000mcd |
| Conventional light color | High-brightness cold white light (8000-30000K) |
| Brightness adjustment | Continuously adjustable 10-100% |
| Lamp holder material | Metal lamp holder |
Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.
Customization Options
- Available in bulk pack of 156 units; no smaller quantities offered
- No option to change lamp bead size or color temperature
- No custom voltage input or output options available
- No alternative housing materials or finishes
Comparison With Other Options
| Standard 81mm LED ring light without brightness adjustment | The AM-156-81 offers continuous 10%-100% brightness control, allowing adaptation to different materials and magnifications, unlike fixed-brightness models. |
|---|---|
| LED ring light with plastic lamp holder | The metal lamp holder in the AM-156-81 resists heat deformation and lasts longer under continuous use compared to plastic holders. |
| Single LED ring light unit | The AM-156-81 is supplied as a 156-piece bulk pack, ideal for equipping multiple workstations uniformly, whereas single units are not designed for large-scale deployment. |
Use Guide
- Install the ring light onto a microscope head with an 81mm inner diameter; ensure the mounting ring is secure
- Connect the power supply to AC90-240V; the unit will convert to 12V output automatically
- Adjust brightness using the control dial from 10% to 100% to match the surface reflectivity and magnification
- Avoid covering the LED beads with dust or debris; clean with a dry cloth if needed
- Do not exceed 15W maximum power; use only the supplied or compatible power adapter
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View DetailsFrequently Asked Questions
How many units are included in the AM-156-81 pack?
156 units are supplied as a single bulk pack.
What is the brightness range of the LED light?
Single white light brightness is 10,000 to 15,000mcd with continuous adjustment from 10% to 100%.
What is the color temperature of the light?
The light is high-brightness cold white at 8000-30000K.
Does the ring light require a separate power supply?
Yes, it requires AC90-240V input. The output is 12V DC, but the power supply is not included.
Can I use this ring light on a microscope with a different inner diameter?
It is designed for 81mm inner diameter heads. Use of adapters is not supported.
Is the lamp holder made of metal or plastic?
The lamp holder is made of metal for heat resistance and durability.
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