Lepro 365nm UV Torch Light pen torch (2-pack) for blacklight detection

The essentials

A small 365nm UV pen torch is one of those tools that sounds a bit niche until you actually need it. Lepro’s UV Torch Light is built for spotting things that are harder to see in normal light, such as pet urine and other invisible stains on floors or carpets. On paper, the key idea is simple: objects fluoresce more strongly under 365nm UV light, and this can make “invisible” marks look clearer than under 395nm UV light.

It’s also a straightforward, battery-powered torch rather than a complicated device. If you want a compact blacklight detector you can keep to hand, this sort of torch fits the job well—though it’s worth noting it’s not a guarantee of perfect results on every surface or stain type.

Key features that matter in use

The headline specification here is the 365nm ultraviolet output. The torch also includes a UV filter designed to maximise UV purity by filtering visible-light interference. That matters because purer UV light can help stains fluoresce brighter, while reducing interfering violet light on objects.

This is the kind of design choice you notice indirectly: instead of feeling like you’re shining a coloured torch around, you’re trying to reveal fluorescence more cleanly. The pen-torch form factor is another practical win. It’s pocket-sized, with a clip for attaching it to a pocket, belt, or bag. The clip is detachable too, which is handy if you prefer not to have it on all the time.

What you’ll notice day to day

In a quick “find the mark” scenario, you’d typically switch the lights down, then scan the area slowly with the torch. Because the torch is compact, it’s easier to work along skirting boards, under furniture edges, or the seams of carpet where stains can hide. Under 365nm, many materials and residues tend to show fluorescence, which can make the next steps—cleaning, re-checking, or calling in deeper cleaning—more targeted.

Where this may feel a bit less impressive is with anything that doesn’t fluoresce strongly, or on textured surfaces where the light angle matters. The torch can help you see more, but it still depends quite a lot on the type of stain, how long it’s been there, and what surface you’re checking.

Tech specs

• Name: Lepro UV Torch Light
• Type: 365nm ultraviolet flashlight / UV pen torch
• Format: Lightweight pen torch with detachable clip
• Size: 1.5cm wide, 13.2cm long
• Weight: 28g (approximately 50g with batteries included)
• Capacity: Runs on 2 AAA batteries (batteries not included)
• Wavelength: 365nm UV light
• Colour: Black

Battery and safety notes to take seriously

This torch runs on 2 AAA batteries, but batteries aren’t included, so factor that into your purchase. Also, the instructions advise inserting batteries in the correct direction as shown in the image—easy to get wrong if you’re in a hurry.

And please don’t treat UV light like a normal torch. The guidance is clear: do not look directly into UV light. If you’re using it for pet urine checks, it’s best to keep your focus on the surface, not your eyes on the beam.

Who it’s for, and who should skip it

It suits you if you want a compact UV flashlight for home detection tasks—spotting potential pet urine or invisible stains on floors and carpets, then investigating further.

It may not suit you if you’re expecting a “diagnose everything” tool. Some stains won’t react strongly, and results can vary with surface type and stain age. If you need lab-level certainty or advanced inspection features, this pen torch is more of a practical everyday detector than a deep-testing instrument.

In the box / pack size

The listing is for a 2-pack. That means you’ll have a spare torch for another room, for shared household use, or to keep one stored while you use the other. Batteries are not included, so you’ll likely want to add AAA cells separately.

Final verdict

If you’re looking for a lightweight 365nm UV torch for home blacklight detection, this Lepro 2-pack is a sensible, no-fuss option for quick checks around carpets and floors. The 365nm approach and UV filter are the parts that make it feel purpose-built, rather than a gimmick.

However, don’t assume it will always reveal every stain with the same clarity. If you can’t rely on fluorescence to show up strongly, you may find it more useful as a “help me find it” aid than a definitive answer.

It’s a solid buy if you want a pocketable torch with a clip, and you’re happy to work with controlled lighting and a bit of scanning. You may want to skip it if you need highly consistent results across all materials or you’re uncomfortable using UV light safely.

Mini FAQ

FAQs

• Does it use 365nm UV light? Yes, it’s designed around 365nm UV light, which is stated to make substances fluoresce more strongly than 395nm UV light.

• Are batteries included? No. It uses 2 AAA batteries, but the batteries aren’t included.

• Is there a clip for carrying? Yes. It comes with a clip that can be attached to a pocket, belt, or bag, and the clip is detachable.

• Can it be used to detect pet urine? The description positions it as ideal for detecting pet urine or invisible stains on floors or carpets.

• Is it safe to look into the UV beam? No—there’s a note not to look directly into UV light.