Yes, if the blood stains show a brown fluorescence color under ultraviolet light, it can be judged that there should be blood stains.

How do you get 2 AA batteries in it?

It was powered by 2*AAA batteries.

Can this test uv blocking of sunglasses?

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.

Has anyone used these to detect Freon leaks ? Do they work for that

Yes, it can detects Freon leaks.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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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.

Product ID: 475927900

Details

Color
Black
Light Source Type
LED
Material
Metal
Power Source
Battery
Special Feature
Lightweight

💧IPX4 water resistance for rugged use

📏Compact 5.5-inch pen size with clip

🔦395nm UV wavelength for invisible detection

€ 22.35

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

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Description

🔦 See the unseen, own the moment.

WEATHERPROOF WORKHORSE - IPX4 splash-resistant design means reliable performance rain or shine—never miss a detail.
POCKET SIZED POWERHOUSE - Ultra-lightweight at just 1.1oz with a sleek metal clip for hands-free, on-the-go convenience.
SIMPLE NO FUSS OPERATION - One-button on/off powered by common AAA batteries—ready whenever you are, indoors or outdoors.
DUAL PACK DOUBLE THE UTILITY - Two pen lights included so you’re always prepared—perfect for professionals and pet lovers alike.
INVISIBLE INSIGHTS INSTANT DETECTION - 395nm UV light reveals stains, scorpions, and counterfeit IDs invisible to the naked eye.

The COSOOS 2 Pack UV Black Light Flashlights feature a powerful 395nm wavelength LED in a compact, lightweight pen design with metal clips. Rated IPX4 water-resistant, these durable flashlights excel at detecting pet stains, counterfeit documents, scorpions, and more. Powered by 2 AAA batteries each (not included), they offer easy one-button operation and come as a convenient dual pack, making them an essential tool for professionals, pet owners, and inspection enthusiasts.

Specifications

ASIN	B0B92PDCSV
Additional Features	Lightweight
Batteries are Included	No
Battery Description	Alkaline
Battery Type	Alkaline
Best Sellers Rank	#8,292 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Pet Urine Detectors #125 in Handheld Flashlights
Brand Name	COSOOS
Color	Black
Customer Reviews	4.6 4.6 out of 5 stars (2,263)
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 Special Features	395nm wavelength detection
Light Source Type	LED
Manufacturer	COSOOS
Manufacturer Part Number	FTY67HFHKJFH55
Material Type	Metal
Model Number	CS-DZ002-B
Mounting Type	Clip-on Mount
Number of Batteries	2 AAA batteries required.
Number of Light Sources	2
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
Set Name	2
Shape	Pen
Size	2 Pack
Style Name	Compact
Unit Count	2.0 Count
Voltage	3 Volts
Water Resistance Level	Water Resistant
White Brightness	50 Lumens

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

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€ 22.35

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Customer service was outstanding when I had questions about the product.

2 days ago

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