365nm UV | Zoombar | 12,5 cm
UV-Taschenlampe für präzise Inspektion und Detektion. Einstellbarer Fokus für konzentrierte oder großflächige Abdeckung, kompaktes 12,5 cm Gehäuse, leichtes Design (ca. 113 g) und robuste Aluminiumkonstruktion für zuverlässigen Feldeinsatz.

$27.99
$34.99
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3-Year Warranty

What's Included

  • UltraFire 502UV 365nm UV Flashlight 
  • Rechargeable 18650 2600mAh 3.7V lithium-ion battery 
  • Battery Charger

UltraFire® 502UV-365nm UV-Taschenlampe

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.

Watch Demo

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
Zoom Demo
Wide Flood Focused Beam
Interactive Demo

Versatility

One Tool, Endless Uses.

Deep Clean

Bathroom Hygiene

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

Exploration

Mineral Hunting

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

Crafting

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

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Ordinary UV

395nm

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502uv

365nm

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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Waterproof

IP65

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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."

Customer Reviews

Based on 8 reviews
63%
(5)
38%
(3)
0%
(0)
0%
(0)
0%
(0)
J
Jeff W
Works great and I love the brand

I really like the Ultrafire brand. I have a few of their products and one time I had a problem with one. I contacted the company and they got me squared away in no time. Great customer support. And this product seems to be keeping pace with the other products I've had. The feel is solid and controls are simple. The UV light is plenty bright enough to find those things that glow when black light shines on it. Particularly, those darn green horned worms that eat my tomato plants. They are almost the exact color of a tomato plant so they are really hard to find in the day light. But, I go out at night with my black light and they stand out like a sore thumb. Anyway, this light is great for finding them. Did you know you can also find scorpions this way too? It's crazy. So if you're looking for a good black light, this one should fit the bill.

A
A2vk
If you use it to find where you missed cleaning, you will not be happy with yourself

Yes this does operate in the 365nm spectrum which is the holy Grail for black lights. It comes with a good rechargeable battery. It's not weak at all. It actually works quite well. It's not as bright or as powerful as I would like it to be but for the price point it's pretty good.

You should use this to find scorpions and other little things like that. If you walk around your house and shine this light around your refrigerator, your bathroom, above your stove... you will regret it. Not because the product has anything to do with it but because you'll be seeing all the spots that you miss when you clean. Believe me it will be troubling at best

G
Griffin

This little aluminum body UV flashlight feels very well built and extremely durable. It has a simple rubber on/off button on the end cap, and the head slides in or out to adjust the focus of the beam, which is very strong (at least compared to other UV lights in this size that I’ve bought). There’s no charging port, since the battery must be removed for charging, though a wall charger is included. The end cap seals with a rubber o-ring and seems secure. The light has a belt clip, but nowhere to attach a wrist strap, which is my only, extremely minor, issue.

In use, this UV light performed wonderfully, easily highlighting all kinds of interesting stuff, even at a pretty good distance. Overall, this is absolutely the best little UV flashlight I’ve ever owned and, while it seems slightly pricey, I think it’s well worth the cost.

C
Cat Daddy
A Must-Have for Pet Owners... Even If It Shows You Too Much

This little UV flashlight is both impressive and mildly horrifying. If you have pets, this thing will probably reveal more mystery spots than you ever wanted to know about. I used it on carpet, furniture, and around pet areas, and let’s just say... ignorance really was bliss.

That said, it works. The light is bright, the UV detection is effective, and it made it easy to spot old pet urine stains that are normally invisible to the naked eye. The adjustable focus is also a nice feature, since it lets you narrow or widen the beam depending on where you’re checking.

It came with a battery and a separate charger, which I thought was a little old-school. I would have preferred a built-in USB-C charging port on the flashlight itself, since that just feels more convenient these days. That was my main reason for knocking off a star.

Other than that, it’s a very handy tool to have around, especially for pet owners trying to track down hidden messes before the smell reminds you first. It’s bright, easy to use, and definitely earns its keep.

R
Randy
Bright and intense light so make sure you have UV lenses! Built well

Very bright and intense so make sure you have up protection or yellow computer glasses since you will be blinded if looking at light too long. The battery included needs about 4-5 to charge when you get it but the included charger is nice and does the job well. I wanted to use this as we have pets and want to see if there are stains as well as if there’s bed bugs or fleas. The main problem and it’s not the products fault is that we have a lot of white sheets and white stuff so it is impossible to tell anything since the whole thing lights up. It can only detect if it is a dark or non cloth material which is a bummer for detecting stains or insects. The price is a little high on Amazon for some reason. If you go to the manufacturer site it is cheaper with free shipping and they give free UV protection glasses which I think is a must for this product. The product is but great though very heavy duty and compact and the adjustable beam telescopes which is nice.

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?

Yes, it is highly weather-resistant. This UltraFire flashlight carries an IP65 rating, which means it is completely dust-tight and protected against low-pressure water jets from any direction. It will easily handle heavy rain, splashes, and the everyday elements you encounter on the job site or out in the field. However, please note that it is not designed to be completely submerged underwater.

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$27.99

UltraFire® 502UV-365nm UV-Taschenlampe

$34.99

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