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Product Description
365nm 20W UV Torch with Black Filter for AC & Automotive Leak Detection
This handheld 20W 365nm UV-A torch with black filter is intended for fluorescent leak-dye inspection in compatible AC, HVAC, refrigeration and automotive systems.
The inspection requires a compatible fluorescent dye or UV-reactive tracer. Actual visibility depends on the dye, ambient light, contamination and inspection geometry.
Product specifications
| Wavelength | 365nm |
| Power | 20W |
| Filter type | Black filter |
| Power requirement | 12V DC |
| Runtime | 5000mAh battery: about 2 hours; 2200mAh battery: about 1 hour |
| Charging | USB charged |
| Working distance | 5 feet |
| Beam angle | 120 degree |
| Dimensions | 150mm / 5.9in length x 44mm / 1.7in diameter x 32mm / 1.26in head |
| Weight | 0.3kg |
| Cable length | 10cm |
| Form factor | Handheld |
| Included accessories | 18650 1200mAh cell and USB-C charging cable |
| Warranty | Not applicable |
| Brand | RDR |
Imported by: GYL Technovations
Address: 35- himson mill campus ,
Near umiyadham circle, A K. Road, varachha, surat 395008
Gujarat,India
Product Specifications
| Product type | Handheld UV-A inspection torch |
| Application | AC, HVAC, refrigeration and automotive fluorescent leak-dye inspection |
| Wavelength | 365nm |
| Power | 20W |
| UV filter | Black filter |
| Power requirement | 12V DC |
| Runtime | 5000mAh battery: about 2 hours; 2200mAh battery: about 1 hour |
| Charging | USB charged |
| Working distance | 5 feet |
| Beam angle | 120 degree |
| Dimensions | 150mm / 5.9in length x 44mm / 1.7in diameter x 32mm / 1.26in head |
| Weight | 0.3kg |
| Cable length | 10cm |
| Included accessories | 18650 1200mAh cell and USB-C charging cable |
| Brand | RDR |
Questions buyers ask before ordering
Frequently Asked Questions
Open a question to see the answer.
It is a 20W 365nm UV-A black-filter torch for fluorescent leak-dye inspection in compatible AC, HVAC, refrigeration and automotive systems.
No. The system needs a compatible fluorescent dye or UV-reactive tracer for this inspection method.
No. Visibility depends on the dye or tracer, ambient light, contamination and inspection geometry.
The product page lists a 5-foot working distance and a 120-degree beam angle.
The page lists about 2 hours with a 5000mAh battery and about 1 hour with a 2200mAh battery.
The product page lists USB charging.
Avoid direct eye exposure, do not stare into the light and limit unnecessary skin exposure.
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.
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.