---
product_id: 377894075
title: "ALONEFIRE SV44 20W 365nm UV Flashlight USB Rechargeable Ultraviolet Black Light Pet Urine Detector for Resin Curing, Fishing, Scorpion, Dry Glue with UV Protective Glasses, Battery Included, Charger"
brand: "alonefire"
price: "€ 87.20"
currency: EUR
in_stock: true
reviews_count: 13
category: "Alonefire"
url: https://www.desertcart.nl/products/377894075-alonefire-sv44-20w-365nm-uv-flashlight-usb-rechargeable-ultraviolet-black
store_origin: NL
region: Netherlands
---

# USB rechargeable with dual battery charging 20W powerful UV LED output Black UV filter lens for pure UV light ALONEFIRE SV44 20W 365nm UV Flashlight USB Rechargeable Ultraviolet Black Light Pet Urine Detector for Resin Curing, Fishing, Scorpion, Dry Glue with UV Protective Glasses, Battery Included, Charger

**Brand:** alonefire
**Price:** € 87.20
**Availability:** ✅ In Stock

## Summary

> 🔦 Illuminate the unseen, own the night with ALONEFIRE SV44!

## Quick Answers

- **What is this?** ALONEFIRE SV44 20W 365nm UV Flashlight USB Rechargeable Ultraviolet Black Light Pet Urine Detector for Resin Curing, Fishing, Scorpion, Dry Glue with UV Protective Glasses, Battery Included, Charger by alonefire
- **How much does it cost?** € 87.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/377894075-alonefire-sv44-20w-365nm-uv-flashlight-usb-rechargeable-ultraviolet-black)

## Best For

- alonefire enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched UV Power:** 3200mW luminous intensity for professional-grade detection and curing.
- • **Dual USB Rechargeable:** Charge two batteries simultaneously with included MC2 charger—no extra purchases needed.
- • **Precision Black Filter Lens:** Filters out ambient light to deliver a sharper, more effective UV beam.
- • **Durable Aluminum Alloy Build:** Rugged, heat-dissipating body designed for long-lasting reliability in any environment.
- • **Safety First with UV Glasses:** Includes protective eyewear to safeguard your vision during intense UV exposure.

## Overview

The ALONEFIRE SV44 is a compact yet powerful 20W ultraviolet flashlight featuring four 365nm UV LEDs that deliver 3200mW of luminous power. Its toughened black UV filter lens ensures pure, focused UV light, ideal for pet urine detection, resin curing, fishing, and more. Crafted from high-quality aluminum alloy for superior heat dissipation and durability, it comes USB rechargeable with two included lithium-ion batteries and a dual charger. Safety is prioritized with included UV protective glasses, making it a professional-grade tool for both home and field use.

## Description

ALONEFIRE SV44 20W 365nm UV Flashlight USB Rechargeable Ultraviolet Black Light Pet Urine Detector for Resin Curing, Fishing, Scorpion, Dry Glue with UV Protective Glasses, Battery Included, Charger - desertcart.com

Review: Great Black Light - I only purchase Alonefire lights. A great light.
Review: NOT What I expected - Pleasantly Surprised! - I spend a good deal of time in the Michigan UP and wanted to play around with the fad of the "YooperLites" which are stones that glow in black light. I ordered this expecting to get some mundane flashlight and this thing was as heavy duty as the one I have in my truck for regular use. Heavy aluminum and runs on 2 big batteries (included) that have a special charger (Included - you provide your own USB power supply). This thing REALLY cranks out the light and they include a set of plastic UV safety glasses to cover your eyes (don't look directly at the light). I was impressed, and I have to say that the scary part of it all was that I have animals in my house and everything looks clean. You take a stroll around in your house with it in the dark and it either looks like a crime scene or a house of ill refute - you might not want to use it in the bedroom or bathroom!! I had to make the funny note because I always clean up the messes and I was shocked to see they were not really cleaned, If you are a landlord you might want to buy one of these for when the tenants leave so you can see how well they cleaned the place up, or what surprises may be soaked into the carpet - just a thought!! I think it is great and can't wait to use it for what I bought it for!

## Features

- 【Quality 365NM UV LED】 Uses 4PCS 365NM UV LED light source rather than the diode lamp, up to amazing 20W power consumption and 3200mW luminous power, which make it become a professional ultraviolet flashlight for some professional use
- 【Black UV Filter Lens】Equipped with hard toughened black filter optical lens that can filter out foreign light from the environment, which makes the ultraviolet light purer and more powerful
- 【Quality Aluminum Alloy Shell】The body case uses high-quality aluminum alloy, which greatly enhanced its heat dissipation performance, this makes flashlights more reliable and durable
- 【USB Rechargeable】Includes MC2 charger with charging indicator, supports USB charging, and can charge 2 Rechargeable batteries at the same time. We have equipped you with 2pcs Rechargeable batteries, you do not need to buy additional batteries
- 【UV Protective Glasses】Our UV flashlight is very powerful, please do not shine into your eyes when using it. We have prepared UV protective glasses for you, and it is recommended to use UV flashlight with this glasses

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09J885Q6N |
| Assembled Height | 23 millimeters |
| Assembled Length | 11.9 centimeters |
| Assembled Width | 23 millimeters |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Composition | Lithium Ion |
| Battery Description | SV44 |
| Best Sellers Rank | #289,109 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,786 in Handheld Flashlights |
| Brand | ALONEFIRE |
| Brightness | 3200 Millicandela |
| Bulb Features | High Power, Rechargeable, UV Light Source |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (175) |
| Date First Available | June 9, 2019 |
| Finish Type | Matte |
| Finish types | Matte |
| Included Components | Battery |
| Item Weight | 15.5 ounces |
| Item model number | SV44 4x365nm |
| Light Source Type | LED |
| Light Source Wattage | 20 Watts |
| Manufacturer | Alonefire |
| Material | Anodized Aluminum |
| Mounting Type | Handheld |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Number of Lights | 4 |
| Part Number | SV44 4x365nm |
| Power Source | Battery Powered |
| Product Dimensions | 4.69 x 0.91 x 0.91 inches |
| Shape | Cylindrical |
| Special Feature | High Power, Rechargeable |
| Special Features | High Power, Rechargeable |
| Style | Compact |
| Voltage | 3.7 Volts |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wattage | 20 Watts |

## Product Details

- **Color:** Black
- **Light Source Type:** LED
- **Material:** Anodized Aluminum
- **Power Source:** Battery Powered
- **Special Feature:** High Power, Rechargeable

## Images

![ALONEFIRE SV44 20W 365nm UV Flashlight USB Rechargeable Ultraviolet Black Light Pet Urine Detector for Resin Curing, Fishing, Scorpion, Dry Glue with UV Protective Glasses, Battery Included, Charger - Image 1](https://m.media-amazon.com/images/I/51ruI7uTi7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Black Light
*by E***Y on October 20, 2025*

I only purchase Alonefire lights. A great light.

### ⭐⭐⭐⭐⭐ NOT What I expected - Pleasantly Surprised!
*by D***1 on June 12, 2024*

I spend a good deal of time in the Michigan UP and wanted to play around with the fad of the "YooperLites" which are stones that glow in black light. I ordered this expecting to get some mundane flashlight and this thing was as heavy duty as the one I have in my truck for regular use. Heavy aluminum and runs on 2 big batteries (included) that have a special charger (Included - you provide your own USB power supply). This thing REALLY cranks out the light and they include a set of plastic UV safety glasses to cover your eyes (don't look directly at the light). I was impressed, and I have to say that the scary part of it all was that I have animals in my house and everything looks clean. You take a stroll around in your house with it in the dark and it either looks like a crime scene or a house of ill refute - you might not want to use it in the bedroom or bathroom!! I had to make the funny note because I always clean up the messes and I was shocked to see they were not really cleaned, If you are a landlord you might want to buy one of these for when the tenants leave so you can see how well they cleaned the place up, or what surprises may be soaked into the carpet - just a thought!! I think it is great and can't wait to use it for what I bought it for!

### ⭐⭐⭐⭐⭐ Helps with me as partially red green color blind
*by J***D on November 19, 2025*

This helps as I am partially color blind.

## Frequently Bought Together

- ALONEFIRE SV44 20W 365nm UV Flashlight USB Rechargeable Ultraviolet Black Light Pet Urine Detector for Resin Curing, Fishing, Scorpion, Dry Glue with UV Protective Glasses, Battery Included, Charger
- LBJD Black Light Flashlight, 365NM Rechargeable Filtered UV Flashlights with High Power Battery for pet Urine Detection, Resin Curing, Scorpions, Rocks Hunting, Car Leaks
- LUMENSHOOTER S3 365nm UV Flashlight with 3 LEDs, Powerful Blacklight Flashlights for Pet Urine Detection, Resin Curing, Rocks, Scorpion

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**Shop now:** [https://www.desertcart.nl/products/377894075-alonefire-sv44-20w-365nm-uv-flashlight-usb-rechargeable-ultraviolet-black](https://www.desertcart.nl/products/377894075-alonefire-sv44-20w-365nm-uv-flashlight-usb-rechargeable-ultraviolet-black)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-28*