---
product_id: 475927900
title: "COSOOS 2 UV Black Light Flashlight, 2 Pack 395nm Mini Pen Light with Clip, Waterproof Ultraviolet Flashlight for Leak, Pet Urine, Scorpion, Hotel Inspection, Dry Stain and Bed Bug."
brand: "cosoos"
price: "RM87"
currency: MYR
in_stock: true
reviews_count: 8
category: "Cosoos"
url: https://www.desertcart.com.my/products/475927900-cosoos-2-uv-black-light-flashlight-2-pack-395nm-mini
store_origin: MY
region: Malaysia
---

# IPX4 waterproof - splash resistant Compact 5.5in size - ultra portable 395nm UV wavelength - unseen detection COSOOS 2 UV Black Light Flashlight, 2 Pack 395nm Mini Pen Light with Clip, Waterproof Ultraviolet Flashlight for Leak, Pet Urine, Scorpion, Hotel Inspection, Dry Stain and Bed Bug.

**Brand:** cosoos
**Price:** RM87
**Availability:** ✅ In Stock

## Summary

> 🔦 Illuminate the unseen, own the moment.

## Quick Answers

- **What is this?** COSOOS 2 UV Black Light Flashlight, 2 Pack 395nm Mini Pen Light with Clip, Waterproof Ultraviolet Flashlight for Leak, Pet Urine, Scorpion, Hotel Inspection, Dry Stain and Bed Bug. by cosoos
- **How much does it cost?** RM87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/475927900-cosoos-2-uv-black-light-flashlight-2-pack-395nm-mini)

## Best For

- cosoos enthusiasts

## Why This Product

- Trusted cosoos brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Real Life:** Durable metal alloy body with splash-proof IPX4 rating for any environment.
- • **Double the Detection:** Two pen lights included—never get caught without your UV sidekick.
- • **Effortless Operation:** One-button simplicity powered by common AAA batteries—ready when you are.
- • **Pocket-Sized Powerhouse:** Slim, lightweight design with clip for hands-free, on-the-go convenience.
- • **Invisible Insights, Visible Results:** 395nm UV light reveals stains, scorpions, and counterfeit IDs with precision.

## Overview

The COSOOS 2 Pack UV Black Light Flashlights feature a 395nm wavelength ideal for detecting pet stains, counterfeit documents, and more. Each compact, lightweight pen light is crafted from durable metal with an IPX4 splash-resistant rating, powered by 2 AAA batteries (not included). Perfect for professionals and pet owners alike, this dual-pack offers reliable, easy-to-use UV illumination wherever you go.

## Description

desertcart.com: COSOOS 2 UV Black Light Flashlight, 2 Pack 395nm Mini Pen Light with Clip, Waterproof Ultraviolet Flashlight for Leak, Pet Urine, Scorpion, Hotel Inspection, Dry Stain and Bed Bug. : Pet Supplies

Review: Simple UV flashlights that work fine for basic use - These UV flashlights work as expected. They are inexpensive, lightweight, and easy to carry in a pocket or small bag. Build quality is basic but acceptable for the price, and nothing arrived damaged or defective. The UV output is usable and does what I needed it to do. That said, the color frequency seems slightly off compared to higher quality UV lights I own. It still lights up materials and surfaces clearly, just not with the same intensity or color accuracy as more expensive options. For casual or occasional use, these are perfectly fine. I used them to illuminate a few different items and included photos showing the results. They are convenient to keep around and work well enough for quick checks without worrying about losing or damaging a more expensive light. Overall, they are a good value if you want a simple UV flashlight that gets the job done without spending much money.
Review: Great little blacklight - Works great. I bought to use to check clothing ahead of time for a black light event, and it was very helpful, because what I was planning on wearing didn't glow at all. Was surprised to see what items and materials glow and which don't - not all bright colors actually glowed. Would recommend. Then for fun started exploring the house, and it was so interesting to see. My pets were surprisingly not as messy as I thought, but my kitchen needs some more cleaning lol. Fun to play around with, seems sturdy and well made, pretty good amount of light, and I like the smaller size - about the size of a marker - which makes it easy to carry in my bag while thrifting.

## Features

- 395M Blacklight: 395nm wavelength can help to detect what naked eye can not see, like dog and other pet urine/stains, driver license, official identification cards, passports, customs or authenticate currency.
- Easy to Use: No need any complicate operation, simply press the button to turn on/off the flashlight, great for both indoor and outdoor use. Powered by 2*AAA batteries(Not Included). Note: The correct installation method of the battery is "+" into the flashlight, "-" facing the tail cover.
- Lightweight & Metal Clip: Measure in 5.5*1.1*0.8inch, weight only 1.1oz/pcs, is extremely lightweight for daily use. With the removeable metal clips, this LED pen light can be easily attached to your belt, pocket, bag or hat, take it anywhere you go. Free your hands when doing works or repairing.
- Reliable & Waterproof: Made of high quality alloy material, strong and sturdy, IPX4 waterproof level resistant from splashing water. Suitable for use in rain, snow, or emergency situations. but please do not immerse this urine detector into water.
- 2 Pack UV Light: You will get 2*blacklight penlights, each flashlight powered by 2*AAA batteries(Not Included), Military grade aluminum material, and the portable design make our black light perfect gift choice for family, friends and pet-lovers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B92PDCSV |
| Additional Features | Lightweight |
| Assembled Height | 0.8 inches |
| Battery Description | Alkaline |
| Battery Type | Alkaline |
| Best Sellers Rank | #3,344 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Pet Urine Detectors #55 in Handheld Flashlights |
| Brand Name | COSOOS |
| Brightness | 50 Lumen |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 1,842 Reviews |
| Finish Types | Smooth Metal |
| Included Components | 2*uv pen light |
| Item Dimensions D x W x H | 5.5"D x 1.1"W x 0.8"H |
| Item Type Name | 2 pack uv pen light |
| Item Weight | 1.1 Ounces |
| Light Source Type | LED |
| Manufacturer | COSOOS |
| Material Type | Metal |
| Mounting Type | Clip-on Mount |
| Number of Batteries | 2 AAA batteries required. |
| Power Source | Battery Powered |
| Recommended Uses For Product | Pet urine detection, Dry stain identification, Scorpion finding, Fluorescent agent identification, Bathroom and hotel room inspection, Counterfeit currency and fake ID detection, Precious minerals, rocks, or jewelry identification |
| Style Name | Compact |
| Unit Count | 2.0 Count |
| Voltage | 3 Volts |
| Water Resistance Level | Water Resistant |
| White Brightness | 50 Lumens |

## Product Details

- **Special Feature:** Lightweight
- **Color:** Black
- **Power Source:** Battery Powered
- **Light Source Type:** LED
- **Material:** Metal

## Images

![COSOOS 2 UV Black Light Flashlight, 2 Pack 395nm Mini Pen Light with Clip, Waterproof Ultraviolet Flashlight for Leak, Pet Urine, Scorpion, Hotel Inspection, Dry Stain and Bed Bug. - Image 1](https://m.media-amazon.com/images/I/71afYMC656L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Can it detect blood?**
A: Yes, if the blood stains show a brown fluorescence color under ultraviolet light,  it can be judged that there should be blood stains.

**Q: How do you get 2 AA batteries in it?**
A: It was powered by 2*AAA batteries.

**Q: Can this test uv blocking of sunglasses?**
A: The wavelengths range of the ultraviolet light in the sunlight is 10nm-400nm, this blacklight flashlight is 395nm. 
You can only use this blacklight fashlight to test if your sunglasses can block 395nm blacklight, for other wavelengths light of UV light, you need other lights.

**Q: Has anyone used these to detect Freon leaks ? Do they work for that**
A: Yes, it can detects Freon leaks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple UV flashlights that work fine for basic use
*by J***M on January 3, 2026*

These UV flashlights work as expected. They are inexpensive, lightweight, and easy to carry in a pocket or small bag. Build quality is basic but acceptable for the price, and nothing arrived damaged or defective. The UV output is usable and does what I needed it to do. That said, the color frequency seems slightly off compared to higher quality UV lights I own. It still lights up materials and surfaces clearly, just not with the same intensity or color accuracy as more expensive options. For casual or occasional use, these are perfectly fine. I used them to illuminate a few different items and included photos showing the results. They are convenient to keep around and work well enough for quick checks without worrying about losing or damaging a more expensive light. Overall, they are a good value if you want a simple UV flashlight that gets the job done without spending much money.

### ⭐⭐⭐⭐⭐ Great little blacklight
*by V***M on November 18, 2025*

Works great. I bought to use to check clothing ahead of time for a black light event, and it was very helpful, because what I was planning on wearing didn't glow at all. Was surprised to see what items and materials glow and which don't - not all bright colors actually glowed. Would recommend. Then for fun started exploring the house, and it was so interesting to see. My pets were surprisingly not as messy as I thought, but my kitchen needs some more cleaning lol. Fun to play around with, seems sturdy and well made, pretty good amount of light, and I like the smaller size - about the size of a marker - which makes it easy to carry in my bag while thrifting.

### ⭐⭐⭐⭐⭐ COSOOS 2 UV Black Light Flashlight, 2 Pack 395nm Mini Pen Light with Clip, Waterproof Ultraviolet
*by J***Y on April 20, 2025*

I recently got the COSOOS 2 UV Black Light Flashlight 2-pack, and I’m really impressed with their performance and convenience. These mini pen lights are compact and lightweight, making them incredibly easy to carry around—especially with the handy clip that lets me attach them to my pocket or bag. The 395nm UV light is bright and effective for detecting pet stains, authenticating documents, and spotting hidden markings or bed bugs. Despite their small size, these flashlights pack a powerful ultraviolet glow that doesn’t disappoint. They’re also waterproof, which adds durability and versatility for outdoor use, or if you happen to drop them in damp spots. Battery life is solid, lasting through multiple uses without needing frequent replacements. Overall, the COSOOS UV Flashlights provide excellent value, combining portability with strong UV detection capabilities. The two-pack is perfect for sharing or having a backup on hand. I highly recommend these for anyone needing a reliable, compact UV flashlight.

## Frequently Bought Together

- COSOOS 2 UV Black Light Flashlight, 2 Pack 395nm Mini Pen Light with Clip, Waterproof Ultraviolet Flashlight for Leak, Pet Urine, Scorpion, Hotel Inspection, Dry Stain and Bed Bug.
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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-22*