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Product Description
365nm 20W UV Torch with Black Filter for Gemstone & Mineral Inspection
This 365nm UV-A torch with black filter is for gemstone, mineral, rock and crystal fluorescence inspection in low-light conditions.
Use it as a fluorescence inspection aid. It does not replace professional gemological testing, and not every stone or mineral will fluoresce.
Best for
- Gemstone fluorescence checking
- Mineral, rock and crystal inspection
- Hobby and collection review
- Low-light UV fluorescence comparison
Product specifications
| Product type | Handheld 365nm UV-A inspection torch |
| Application | Gemstone and mineral fluorescence inspection |
| Wavelength | 365nm UV-A |
| Power | 20W class |
| Filter | Black filter lens |
Imported by: GYL Technovations
Address: 35- himson mill campus ,
Near umiyadham circle, A K. Road, varachha, surat 395008
Gujarat,India
Questions buyers ask before ordering
Frequently Asked Questions
Open a question to see the answer.
This torch is intended as a 365nm UV-A fluorescence-inspection aid for UV-reactive gemstones, minerals, rocks and crystals.
No. Fluorescence varies by material, impurities, treatment and viewing conditions, so lack of fluorescence does not by itself identify or disqualify a specimen.
No. UV fluorescence can provide an inspection clue, but it does not replace professional gemological testing or laboratory identification.
Reduced ambient light makes weak fluorescence easier to see and compare against nearby non-reactive areas.
No. This is a 365nm UV-A inspection light and no germicidal or sterilization claim is made.
Confirm that 365nm is appropriate for the material you want to inspect and review the exact power, charging and accessory details listed for the selected product.
Avoid direct eye exposure, do not stare into the light, limit unnecessary skin exposure, keep the product away from children and use suitable protective practices for the application.
Selection confidence
Confirm this is the right UV product before you buy
Use this product for general UV-A fluorescence checks where black-filter contrast is not the main requirement.
Application-specific UV use.
365nm UV-A is used for fluorescence checks where a black filter is not mandatory.
Choose black-filter 365nm when visible-light suppression matters.
Variant clarity
Choose the correct variant
Compare wattage, price, SKU and stock state before ordering. On mobile, variants are shown as cards so buyers do not have to read a cramped table.
2200mAH (18650 size)
Price₹1,999.00
SKU20365
StatusSold out
5000mAH (26650 size)
Price₹2,199.00
SKU20366
StatusSold out
Verified product information
Specifications that matter for this application
UV buyers need wavelength, geometry, power source, runtime or curing/inspection conditions—not just headline wattage.
Wavelength365nm
Buyer guide
How to choose and use this product correctly
Use the application, wavelength, distance and power source together. Do not select a UV product on wattage alone.
Start with the application
Pick UV by job: inspection, glow/decor, curing, exposure work or compact lighting. Wattage alone is not a reliable buying shortcut.
Confirm wavelength
365nm, 395nm and 405nm serve different tasks. The product title, specs and use-case copy must agree.
Check distance and coverage
For curing and inspection, working distance matters. For floodlights and decor, coverage and mounting distance matter.
Match the power source
Handheld torches suit mobile checks. Floodlights, bulbs and strips are better for fixed areas, rooms, displays and workbenches.