---
product_id: 562335408
title: "UV Pen Flashlight, LED 395nm Ultraviolet Zoomable Blacklight, IP54 Waterproof Detector for Pet Urine, Cat Dog Stains, Bed Bug, Household Wardrobe Toilet"
brand: "cosmoing"
price: "¥5790"
currency: JPY
in_stock: true
reviews_count: 5
category: "Cosmoing"
url: https://www.desertcart.jp/products/562335408-uv-pen-flashlight-led-395nm-ultraviolet-zoomable-blacklight-ip54-waterproof
store_origin: JP
region: Japan
---

# 5-hour runtime on 2 AAA batteries IP54 waterproof & shockproof 3W powerful UV LED UV Pen Flashlight, LED 395nm Ultraviolet Zoomable Blacklight, IP54 Waterproof Detector for Pet Urine, Cat Dog Stains, Bed Bug, Household Wardrobe Toilet

**Brand:** cosmoing
**Price:** ¥5790
**Availability:** ✅ In Stock

## Summary

> 🔦 Illuminate the unseen, own the moment.

## Quick Answers

- **What is this?** UV Pen Flashlight, LED 395nm Ultraviolet Zoomable Blacklight, IP54 Waterproof Detector for Pet Urine, Cat Dog Stains, Bed Bug, Household Wardrobe Toilet by cosmoing
- **How much does it cost?** ¥5790 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/562335408-uv-pen-flashlight-led-395nm-ultraviolet-zoomable-blacklight-ip54-waterproof)

## Best For

- cosmoing enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Use Powerhouse:** From nail drying to forensic inspections, this tool adapts to your professional and personal needs.
- • **Rugged & Weatherproof:** IP54-rated aluminum body built to withstand outdoor adventures and indoor messes.
- • **Long-Lasting Battery Life:** Up to 5 hours of continuous use powered by easy-to-replace AAA batteries—no downtime.
- • **Pinpoint Invisible Stains:** Detect hidden pet urine, bed bugs & counterfeit money with precision UV 395nm light.
- • **Ultra-Portable & Lightweight:** Compact 5.4-inch penlight weighing just 32g—carry it anywhere, anytime.

## Overview

The COSMOING UV Pen Flashlight is a sleek, 3W 395nm ultraviolet blacklight designed for professionals and pet owners alike. Its IP54 waterproof aluminum body ensures durability, while the zoomable LED delivers 200 lumens of bright UV light to detect invisible stains, counterfeit documents, and more. Lightweight and portable, it runs up to 5 hours on 2 AAA batteries, making it an essential multi-functional tool for forensic, household, and outdoor use.

## Description

UV Pen Flashlight, LED 395nm Ultraviolet Zoomable Blacklight, IP54 Waterproof Detector for Pet Urine, Cat Dog Stains, Bed Bug, Household Wardrobe Toilet : desertcart.in: Home Improvement

Review: Compact Pen light - Works Great - Exactly what I was looking for. Nice compact design and simple to use. Seems to be well built and the UV light is very bright.
Review: Ruby. - Used to evaluate a family ruby ring. I am a happy person. Works as expected.

## Features

- 【UV FLASHLIGHT PERFECT FOR DETECTING INVISIBLE STAINS】 COSMOING 395nm ultraviolet blacklight exactly detect food or hidden pet stains of dogs,cats and other pets on carpets,there's no need to steam clean the entire carpet, UV blacklight will pinpoint the areas with ease. Identify counterfeit money and reveal the hidden ink on passport, money or other important documents, ideal for invisible spots and stains that can not see with the naked eye.
- 【LOTS OF UNEXPECTED FUNCTION】3W COSMOING portable UV flashlights can also detect cat moss,act as nail dryer, prospecting field exploration and antique identification tool. It is also an essential tool for law enforcement, postal inspections, customs, medical forensics, scorpions huntings. Conveniently powered for hours with 2AAA battery (NOT Included).
- 【VERSATILE PEN LIGHT】This 5.4 inch LED penlight, weighing just 1.12oz/pcs, is extremely lightweight & robust. Equipped with 2 AAA batteries, perfect for using as a medical inspection light or reading, after-dark walks, camping, hiking, repairing, power outage, etc.
- 【WATERPROOF & SMART】IPX4 rating of this UV blacklight, best using for either indoor or outdoor application.The tactical flashlight is built of high quality aluminum alloy. Skid-proof, waterproof, explosion-proof and shockproof.
- 【YOU WILL GET】A surprising sufficient package: A super bright led ultraviolet flashlight, an operation guide, a service card. Any inquires before purchase are also welcomed. Don’t hesitate to contact our friendly, easy-to-reach support when in need.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08PXQYT9T |
| Are Batteries Included | No |
| Battery Description | Alkaline |
| Battery Type | NiMH |
| Best Sellers Rank | #71,809 in Home Improvement ( See Top 100 in Home Improvement ) #854 in Handheld Flashlights |
| Brand | COSMOING |
| Colour | Black |
| Customer Reviews | 4.5 out of 5 stars 1,642 Reviews |
| Enclosure Material | Aluminium |
| Finish Types | Antique |
| Included Components | Battery |
| Item Dimensions D x W x H | 138D x 15W x 15H Millimeters |
| Item Dimensions L x W x H | 13.7L x 13.7W x 13.7H Centimeters |
| Item Weight | 32 g |
| Light Output Maximum | 200 Lumens |
| Light Source Special Features | Multi-purpose, UV detection, Nail drying, Law enforcement tool |
| Light Source Type | UV |
| Light Source Wattage | 3 Watts |
| Manufacturer | COSMOING |
| Manufacturer Part Number | FL16-UV.1 |
| Material | Aluminium |
| Model number | FL16UV |
| Mounting Type | Handheld |
| Number of Batteries | 2 AAA batteries required. |
| Number of Items | 1 |
| Number of Lights | 1 |
| Number of Packs | 1 |
| Power Source | Battery Powered |
| Product Features | Lightweight, Portable, Waterproof |
| Recommended Uses For Product | Detecting pet stains, Acting as a nail dryer, Prospecting, Law enforcement, Medical forensics |
| Runtime | 5 hours |
| Shape | Pen |
| Special Feature | Lightweight, Portable, Waterproof |
| Specification Met | IP65 water resistance |
| Style | 1PCS-Zoomable PenLight |
| UPC | 048518774563 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |
| Wattage | 3 Watts |
| White Brightness | 200 Lumens |

## Product Details

- **Special Feature:** Lightweight, Portable, Waterproof
- **Colour:** Black
- **Power Source:** Battery Powered
- **Light Source Type:** UV
- **Material:** Aluminium

## Images

![UV Pen Flashlight, LED 395nm Ultraviolet Zoomable Blacklight, IP54 Waterproof Detector for Pet Urine, Cat Dog Stains, Bed Bug, Household Wardrobe Toilet - Image 1](https://m.media-amazon.com/images/I/515EfwVZAyL.jpg)

## Questions & Answers

**Q: Will it cause transition lenses to darken?**
A: I don't know. I use it for uranium glass

**Q: would this work well with dental resin to apply tooth gems?**
A: Yes

**Q: Will it work for Glow in the dark Funko pops??**
A: Yes

**Q: What type usb is this? Usb-c or mini usb?**
A: Micro usb

## Customer Reviews

### ⭐⭐⭐⭐⭐ Compact Pen light - Works Great
*by S***E on 6 March 2024*

Exactly what I was looking for. Nice compact design and simple to use. Seems to be well built and the UV light is very bright.

### ⭐⭐⭐⭐⭐ Ruby.
*by L***C on 14 August 2026*

Used to evaluate a family ruby ring. I am a happy person. Works as expected.

### ⭐⭐⭐⭐⭐ Useful for detecting uranium glass
*by N***. on 4 July 2024*

This light is perfect for what I need. I wanted a small light to detect uranium glass. Voila! This is it! I can't comment on it's durability since I haven't had it long.

## Frequently Bought Together

- COSMOING UV Flashlight, LED 395nm Ultraviolet Flashlight, Zoomable Pen Blacklight Flashlight IP54 Waterproof Detector for Pet Urine, Cat Dog Stains, Bed Bug, Household Wardrobe Toilet
- InterDynamics Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More, 1 Oz, 374CS, Universal
- TSI Supercool Synthetic U/V Leak Detection Dye, 1 oz, 1 Application

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/562335408-uv-pen-flashlight-led-395nm-ultraviolet-zoomable-blacklight-ip54-waterproof](https://www.desertcart.jp/products/562335408-uv-pen-flashlight-led-395nm-ultraviolet-zoomable-blacklight-ip54-waterproof)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-18*