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Product Description
3W 365nm Black Filter UV Torch for Leak-Dye Inspection
This compact 3W 365nm UV-A torch with black filter is intended for close-range fluorescent leak-dye inspection and industrial UV-reactive checking tasks.
Leak detection requires a compatible fluorescent dye or tracer. Actual visibility depends on the dye, ambient light, contamination and inspection geometry.
Product specifications
| Wavelength | 365nm |
| Power | 3W |
| Filter type | Black filter |
| Power requirement | 12V DC |
| Battery | 18650 1200mAh cell |
| Runtime | 2 hours |
| Charging | Battery needs to be recharged separately |
| Working distance | 2 feet |
| Beam angle | 90 degree |
| Dimensions | 12cm x 2.5cm diameter |
| Weight | 0.2kg |
| Cable length | 10cm |
| Included accessories | 18650 1200mAh cell and cell charger |
| Brand | RDR |
Imported by: RDR INNOVATIONS
Address: 16,17 Atulit Industrial Park, Umra sayan road, surat- 394130
Product Specifications
| Product type | Compact handheld UV-A inspection torch |
| Application | Fluorescent leak-dye detection and industrial inspection |
| Wavelength | 365nm |
| Power | 3W |
| UV filter | Black filter |
| Power requirement | 12V DC |
| Battery | 18650 1200mAh cell |
| Runtime | 2 hours |
| Charging | Battery needs to be recharged separately |
| Working distance | 2 feet |
| Beam angle | 90 degree |
| Dimensions | 12cm x 2.5cm diameter |
| Weight | 0.2kg |
| Cable length | 10cm |
| Included accessories | 18650 1200mAh cell and cell charger |
| Brand | RDR |
Questions buyers ask before ordering
Frequently Asked Questions
Open a question to see the answer.
This torch is intended for leak-dye inspection where the system contains a fluorescent tracer compatible with 365nm UV-A.
Not necessarily. The product is intended to reveal compatible fluorescent tracer dye; it does not make an unsupported claim that every leak is visible without a suitable tracer.
Applications can include automotive, HVAC, refrigeration or other systems that use a compatible fluorescent tracer, subject to the tracer and equipment manufacturer's instructions.
Reduced ambient light can improve fluorescence contrast and make small traces easier to see.
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 where fluorescence contrast matters, such as inspection, stain checking, leak dye or material fluorescence tasks.
Leak dye inspection
365nm black-filter products are chosen for higher-contrast fluorescence and inspection tasks.
Not for blacklight ambience or 405nm curing workflows.
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
Filter / light typeBlack filter
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.