$35.99

UltraFire® 502UV-365nm UV Flashlight

Name: UltraFire® 502UV-365nm UV Flashlight
Brand: UltraFire
Price: 35.99 USD
Availability: InStock

Features

Use Cases

Comparison

Reviews

FAQ

UltraFire® 502UV-365nm UV Flashlight

365nm

Weight

115g

Length

12.5cm

Zoom

Adjustable

See the Invisible
World at Home.

The 502UV uses true 365nm wavelength technology to reveal stains,

minerals, and hidden details that ordinary UV lights miss.

Trusted by families

The Solution

Stop Guessing.
Start Seeing.

Most household cleaning misses what you can't see. The 502UV reveals the hidden

reality of your home environment, giving you total control over cleanliness.

Invisible Stains

Pet accidents and bathroom grime often hide in plain sight, causing odors and hygiene issues.

Counterfeit Detection

Verify currency, IDs, and official documents instantly with professional-grade UV response.

Resin Curing

Standard lights take forever. Our 365nm wavelength cures UV resin in seconds, not minutes.

Precision Zoom Technology

Adjustable Beam Focus
Slide the head to switch from a wide floodlight for scanning large areas to a pinpoint spotlight for intense inspection.

True 365nm Wavelength
Unlike 395nm lights that emit too much visible purple light, 365nm is nearly invisible to the eye but makes fluorescence pop with extreme contrast.

Aircraft-Grade Aluminum
Built to last with a rugged, shock-resistant body that fits perfectly in your hand or pocket.

502UV Zoom Demo

Wide Flood Focused Beam

Interactive Demo

Versatility

One Tool, Endless Uses.

Bathroom Hygiene

Find hidden toilet stains and bacteria buildup that standard lighting misses.

Mineral Hunting

Discover glowing rocks and minerals. Perfect for collectors and outdoor enthusiasts.

Resin Art

Professional wavelength for rapid curing of UV resins and adhesives.

The Science of Light

Why 365nm is Superior.

Standard UV lights (395nm) emit a lot of visible purple light, which washes out the fluorescence. Our 365nm pure wavelength is nearly invisible, making the "glow" stand out with incredible clarity.

90% Less Visible Light Interference

Higher Contrast for Stain Detection

Professional Grade Wood's Lamp Effect

Technical Data

Built for Precision.

Model

502UV

Title

Wavelength

365nm

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Dimensions

12.5 × 3.3 × 2.5 cm

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Weight

115 g (without battery)

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Package Size

19 × 10.5 × 4.5 cm

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Package Weight

270 g

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Testimonials

What Our Customers Say

Sarah Jenkins

MAR 18, 2026

"I thought my bathroom was clean until I used this. It's both terrifying and satisfying. Best purchase this year!"

Mark Thompson

MAR 20, 2026

"The zoom feature is a game changer for field work. The 365nm wavelength makes my fluorite specimens glow like crazy."

Elena Rodriguez

MAR 22, 2026

"Perfect for my resin jewelry. Cures much faster than my old lamp and the build quality is top-notch."

Support

Frequently Asked Questions

Is 365nm safe for eyes?

Like any high-power flashlight, you should never look directly into the beam. We recommend wearing UV-protective glasses during extended use.

Does it come with a battery?

The standard package includes the 502UV flashlight and one 18650 2600mAh protected rechargeable battery.

What is the difference between 365nm and 395nm?

365nm is a shorter wavelength that is less visible to the human eye but more effective at inducing fluorescence. 395nm is cheaper but has a lot of purple 'noise' that washes out what you're trying to see.

Is it waterproof?

365nm is a shorter wavelength that is less visible to the human eye but more effective at inducing fluorescence. 395nm is cheaper but has a lot of purple 'noise' that washes out what you're trying to see.

UltraFire® 502UV-365nm UV Flashlight

365nm UV | Zoomable | 4.92 in
UV Flashlight designed for precision inspection and detection. Adjustable focus for concentrated or wide-area coverage, compact 4.92-inch body, lightweight 0.25 lb design, and durable aluminum construction for reliable field use.