---
product_id: 372390032
title: "SV43 36W 365nm UV Flashlight USB C Rechargeable Ultraviolet Black Light Woods Lamp for Pet Urine Detector, Resin Curing, Scorpion, Bed Bug, Fishing, Leak with UV Protective Glasses, Battery"
brand: "alonefire"
price: "฿6532"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/372390032-sv43-36w-365nm-uv-flashlight-usb-c-rechargeable-ultraviolet-black
store_origin: TH
region: Thailand
---

# 36W powerful UV LED output USB-C rechargeable with reverse charging Black UV filter lens for pure UV light SV43 36W 365nm UV Flashlight USB C Rechargeable Ultraviolet Black Light Woods Lamp for Pet Urine Detector, Resin Curing, Scorpion, Bed Bug, Fishing, Leak with UV Protective Glasses, Battery

**Brand:** alonefire
**Price:** ฿6532
**Availability:** ✅ In Stock

## Summary

> 🔦 Illuminate the unseen, power your day — the ultimate UV flashlight for pros who demand more.

## Quick Answers

- **What is this?** SV43 36W 365nm UV Flashlight USB C Rechargeable Ultraviolet Black Light Woods Lamp for Pet Urine Detector, Resin Curing, Scorpion, Bed Bug, Fishing, Leak with UV Protective Glasses, Battery by alonefire
- **How much does it cost?** ฿6532 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/372390032-sv43-36w-365nm-uv-flashlight-usb-c-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:** 36W 365nm UV LEDs deliver 6000mW luminous intensity for professional-grade detection and curing.
- • **Complete Safety Kit:** Includes upgraded UV protective glasses with enhanced lens darkness for safe, worry-free use.
- • **Dual-Use Reverse Charging:** Transforms into a portable power bank to charge your devices on the go—never get caught powerless.
- • **Smart USB-C Rechargeability:** Convenient reversible USB-C charging with status indicator keeps you powered up effortlessly.
- • **Durable Aluminum Alloy Build:** Premium heat-dissipating aluminum shell ensures longevity and reliable performance under pressure.

## Overview

The ALONEFIRE SV43 is a high-performance 36W UV flashlight featuring 12 high-quality 365nm LEDs and a black UV filter lens for pure, intense ultraviolet light. Its durable aluminum alloy body ensures excellent heat dissipation and longevity. Equipped with USB-C rechargeable battery and reverse charging capability, it doubles as a power bank. Ideal for pet urine detection, resin curing, scorpion and bed bug spotting, and more, it comes with upgraded UV protective glasses for safe operation.

## Description

Full description not available

## Features

- 【Quality 365nm UV LED】This UV light flashlight uses 3pcs 4-core(12 cores in total) high-quality 365nm UV LED as light source, up to amazing 36W power consumption and 6000mW luminous power, which make it become a professional black light for some professional use
- 【Black UV Filter Lens】This woods lamp is 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 of black light flashlight uses high-quality aluminum alloy, which greatly enhances its heat dissipation performance, this extends lamp bead life and makes blacklight more reliable and durable
- 【USB C Rechargeable 】This UV light is designed with a USB C charging port, it can be inserted into the charging port without regard to the front and back of the plug, which makes charging more convenient and easy. The charging indicator allows you to keep track of the charging status of the power and makes the charging process safer. High capacity rechargeable battery is included
- 【Reverse Charging】This ultraviolet flashlight supports reverse charging, and thanks to its included high-capacity battery, you can rest assured to use it as an improvised power bank to charge your devices on the go. The reverse charging output port is USB A port
- 【UV Protective Glasses】Our 365nm UV flashlight is very powerful, so please do not shine into your eyes when using it. We have prepared UV protective glasses for you, upgraded protective glasses with darker lenses and better UV protection. It is recommended to use UV flashlight with this glasses
- 【Wide Range of Uses】The blacklight flashlights for pet urine detection is powerful and long-lasting, suitable for detecting fluorescent substances not visible to the naked eye, including cat pee/pet urine checking, cat ringworm detection, currency authentication, scorpion detection, mineral detection, bed bug detector. it's great for curing resins, curing glue, and more!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Special Feature | Durable |
| Color | Black |
| Power Source | Battery Powered |
| Light Source Type | LED |
| Material | Aluminum |
| White Brightness | 1500 Lumens |
| Voltage | 5 Volts |
| Battery Cell Composition | Lithium Ion |
| Number of Batteries | 1 Nonstandard Battery batteries required. (included) |
| Water Resistance Level | Not Water Resistant |
| Brand | ALONEFIRE |
| Brightness | 1500 lumen |
| Battery Description | SV43 |
| Finish Type | Polished |
| Light Source Wattage | 36 Watts |
| Manufacturer | Alonefire |
| Part Number | SV43 3x365nm |
| Item Weight | 1.01 pounds |
| Product Dimensions | 4.69 x 0.91 x 0.91 inches |
| Batteries | 1 Nonstandard Battery batteries required. (included) |
| Assembled Height | 23 millimeters |
| Assembled Length | 11.9 centimeters |
| Assembled Width | 23 millimeters |
| Shape | Cylindrical |
| Finish types | Polished |
| Number of Lights | 12 |
| Special Features | Durable |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Wattage | 36 Watts |
| Bulb Features | 365nm UV LED, Black UV Filter Lens |

## Product Details

- **Special Feature:** Durable
- **Color:** Black
- **Power Source:** Battery Powered
- **Light Source Type:** LED
- **Material:** Aluminum

## Images

![SV43 36W 365nm UV Flashlight USB C Rechargeable Ultraviolet Black Light Woods Lamp for Pet Urine Detector, Resin Curing, Scorpion, Bed Bug, Fishing, Leak with UV Protective Glasses, Battery - Image 1](https://m.media-amazon.com/images/I/517mgtuHlzL.jpg)

## Questions & Answers

**Q: Does this light take the 26650? i have the uvbeast v3 and the convoy c8 and the c8 has brighter spot and throws much farther with only 1 365nm led.**
A: Yes, mine uses a 16850 battery.

**Q: What type(size) battery does it use?**
A: 4200mAh, 3.7V, BR21700, High performance reachargeable Li-ion Battery

**Q: In which orientation should the battery be inserted (e.g. positive end facing forward or backward)?**
A: Battery Polarity: The positive (+) end of the battery goes at the front (nearest to the bulb), the negative (-) end at the back of the torch.

**Q: 4200mah, 3.7v, br21700 is it protected? no info at all!**
A: Hello, it's protected.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Found many uses. Good value!
*by T***D on June 12, 2025*

Great product. Originally bought to charge glow fishing lures and it works great for that. Other uses I have found is to inspect surfaces for cleanliness, dust and dirt glows (but does not make a happy wife so do this sparingly), beach glass glows at night. I have always had ample battery life for my usage.

### ⭐⭐⭐⭐⭐ good value
*by J***O on December 19, 2021*

I have the light, Alonefire SV43 365nm UV light, for two weeks, never had a UV light before, and spend three weeks to find a light, that would do everything, the internet was saying, it should do.I was looking for a 365 UV light for fun, to see, around the house, the unseen. I wanted an easily pocketable light that would work indoors, like at home, in the airplane, hotel, car, and strong enough during the day.It does the job on all fronts, for me.It is extremely solidly build.The light cone is wider with the imbedded 3LEDs, and that's what I wanted, as I was afraid, that I would have to go through the room inch by inch searching for whatever. It is more like two feet by two feet, while I am standing. Be prepared to see "the mess", though, on carpet, toilet, kitchen pots, walls, clothes , hands, etc.The throw, at night, in my 30 feel long room is no problem, not that I need it. The intensity is sometimes too bright without the yellow supplied glasses, thus the feature I did not know about before purchasing, namely that by holding the On/Off button, the intensity of the beam gradually dims - and goes back to full, comes handy.In the instructions, one is warned to not totally drain the battery, and hence another feature on this light comes handy - four lit dots by the On/Off switch, when the charge is full. As one depletes the battery charge, the dots, one by one, go off. I did not run out of juice in the hour I was playing with the light, thus I do not know, how long it would last.Nice feature is, that the charger is embedded into the light and, on top of that, one can use the charged battery to charge a phone.What I was missing on this light was a lense cover, in order not to scratch or dusty the glass, while in the pocket. I easily added a cover by finding a lid from some, around the house laying, container, that I fitted very snugly onto the lense. The lid happens to state the lid's measurement: 53mm (millimeters)Only the english of the very few sentences on the tiny 2" by 3" "Dear customer" sticker gives away its Chinese origin.From the above, it is easily recognizable, that I do recommend this Alonefire SV43 365nm UV light.

### ⭐⭐⭐⭐ Excellent But Needs A Decent Manual
*by R***D on December 24, 2024*

A versatile UV light that uses a 21700 size battery. The user interface includes two power output levels and light output ramping so the light needs better user instructions included with it, thus the downgrade to 4 stars. No mode memory so a momentary press has it come on in high mode. A second momentary press has it change to intermediate output mode. A press and hold has it go into ramping mode, either up or down. When it reaches adjustment extremes the light blinks twice then starts ramping in the opposite direction until the switch is released. NONE of this is covered in the included documentation with mine.Charging needs a USB A to A cable or the included A to C cable as a USB C to C cable does not work with the USB C port on the flashlight. The light has both USB A female and USB C female ports for charging.The beam is fairly diffuse and beyond about a foot or so the center brighter spot turns into a doughnut with a dimmer center, so not an ideal beam in my opinion. The light itself seems to be quite well made and the UV filter is very good at eliminating light other than the wanted UV.

## Frequently Bought Together

- ALONEFIRE SV43 36W 365nm UV Flashlight USB C Rechargeable Ultraviolet Black Light Woods Lamp for Pet Urine Detector, Resin Curing, Scorpion, Bed Bug, Fishing, Leak with UV Protective Glasses, Battery
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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-19*