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10 Best Black Light Flashlights 2025 in the United States
#1
Winner
Streamlight 66149 Stylus Pro USB 400nm UV Rechargeable Penlight with USB Cord and Nylon Holster, Black
The Streamlight 66149 Stylus Pro is a compact UV penlight designed for those who need a reliable black light source. It emits UV light at 400nm wavelength, which is effective for many common uses like detecting stains, pet urine, or counterfeit money. Its UV output of 325 milliwatts provides a decent brightness without being too harsh. The flashlight is powered by a rechargeable lithium-ion battery that fully charges in about 2.5 hours using the included USB cord, making it convenient and cost-effective by eliminating the need to frequently buy disposable batteries.
Rating
9.9
Chosen by1,268
Wavelength
Light Output
Battery Type and Life
Most important from
30919 reviews
#2
Vansky UV Flashlight Black Light, 51 LED Blacklight Pet Urine Detector for Dog/Cat Urine, Dry Stains, Bed Bug, Resin Curing, Scorpions Finder
The Vansky UV Flashlight Black Light is a versatile and useful tool for detecting invisible stains, pet urine, and various other substances. With a wavelength of 395nm, it effectively reveals hidden stains on rugs, carpets, and clothes.
Rating
9.8
Light Output
Battery Type and Life
Durability and Build Quality
Most important from
70153 reviews
#3
GearLight UV Black Light Flashlight S100 [2 Pack] - Mini Blacklight Ultraviolet Pen Lights for Leak and Hotel Inspection - Pet Urine, Bed Bug, Scorpion, Stain, and Dye Detector
![GearLight UV Black Light Flashlight S100 [2 Pack] - Mini Blacklight Ultraviolet Pen Lights for Leak and Hotel Inspection - Pet Urine, Bed Bug, Scorpion, Stain, and Dye Detector](https://images-proxy.bestreviews.guide/vL0-ueyKXZQO_Zgi2UvMk_gzdYc=/0x300/https://m.media-amazon.com/images/I/41CCNt2kRPL._AC_CX679_.jpg)
The GearLight UV Black Light Flashlight S100 comes as a convenient 2-pack of compact ultraviolet flashlights, each about 5.25 inches long and light enough to easily carry in your pocket or attach with the included clip. These lights use LED bulbs that emit UV light to reveal things like pet stains, bed bugs, or counterfeit money that are invisible in regular light. Powered by 2 AAA batteries each (not included), they offer decent battery life but you’ll want to keep spare batteries handy if used frequently.
Rating
9.7
Light Output
Battery Type and Life
Durability and Build Quality
Most important from
15190 reviews
Top 10 Best Black Light Flashlights 2025 in the United States
#1
Winner
Streamlight 66149 Stylus Pro USB 400nm UV Rechargeable Penlight with USB Cord and Nylon Holster, Black
Streamlight 66149 Stylus Pro USB 400nm UV Rechargeable Penlight with USB Cord and Nylon Holster, Black
Wavelength: 400nm UV
Light Output: 325 milliwatts
Battery Type and Life: Rechargeable lithium-ion, 2-2.5 hours
Durability and Build Quality: Aluminum body, water-resistant metal sleeve
Size and Portability: 5.95x0.63x0.63 inches, 3.62 oz
Chosen by 1268 this week
Vansky UV Flashlight Black Light, 51 LED Blacklight Pet Urine Detector for Dog/Cat Urine, Dry Stains, Bed Bug, Resin Curing, Scorpions Finder
Vansky UV Flashlight Black Light, 51 LED Blacklight Pet Urine Detector for Dog/Cat Urine, Dry Stains, Bed Bug, Resin Curing, Scorpions Finder
Wavelength: 395nm
Light Output: 51 UV LEDs
Battery Type and Life: 3 AA batteries, Alkaline
Durability and Build Quality: Durable aluminum
Size and Portability: 1.76 oz, 5.9"D x 2.16"W x 2.16"H
GearLight UV Black Light Flashlight S100 [2 Pack] - Mini Blacklight Ultraviolet Pen Lights for Leak and Hotel Inspection - Pet Urine, Bed Bug, Scorpion, Stain, and Dye Detector
GearLight UV Black Light Flashlight S100 [2 Pack] - Mini Blacklight Ultraviolet Pen Lights for Leak and Hotel Inspection - Pet Urine, Bed Bug, Scorpion, Stain, and Dye Detector
Light Output: LED bulbs emitting UV light
Battery Type and Life: 2 AAA batteries; decent life
Durability and Build Quality: Military-grade aluminum; durable; water resistant
Size and Portability: 5.25 inches; pocket-sized; includes clip
uvBeast V3 365nm Black Light UV Flashlight – High Definition Ultraviolet - HIgh Power and Long Range Professional Grade Beam Best for Professional/Commercial Use – USA Stock
uvBeast V3 365nm Black Light UV Flashlight – High Definition Ultraviolet - HIgh Power and Long Range Professional Grade Beam Best for Professional/Commercial Use – USA Stock
Wavelength: 365nm
Light Output: 5400 uW/cm2
Battery Type and Life: 3 AA batteries (included)
Durability and Build Quality: Black anodized aluminum
Size and Portability: 8.66 x 2.17 x 0.91 inches
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uvBeast New V3 365nm MINI - Black Light UV Flashlight – High Definition Pure Ultraviolet - Professional Grade High Power Upgraded 5 Core UV LED – USA Stock
uvBeast New V3 365nm MINI - Black Light UV Flashlight – High Definition Pure Ultraviolet - Professional Grade High Power Upgraded 5 Core UV LED – USA Stock
Wavelength: 365nm
Light Output: high-definition UV light
Battery Type and Life: Lithium-Ion, 5 hours
Durability and Build Quality: anodized aluminum, durable, lightweight
Size and Portability: 2.02 x 0.64 x 0.64 inches
uvBeast V3 385-395nm Black Light UV Flashlight - High Power Upgraded Triple Broad Band LEDs Best for Professional/Commercial Use - USA Stock
uvBeast V3 385-395nm Black Light UV Flashlight - High Power Upgraded Triple Broad Band LEDs Best for Professional/Commercial Use - USA Stock
Wavelength: 385-395nm
Light Output: triple 1.2A UV LEDs, 70 feet
Battery Type and Life: Battery Powered
Durability and Build Quality: Aluminum body
Size and Portability: Portable
#10
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Buying Guide for the Best Black Light Flashlights
When choosing a black-light flashlight, it's important to understand the key specifications that will determine its performance and suitability for your needs. Black-light flashlights, also known as UV flashlights, are used for a variety of purposes such as detecting pet stains, scorpions, counterfeit money, and more. To make an informed decision, you should consider the following key specifications and how they align with your intended use.WavelengthThe wavelength of a black-light flashlight is measured in nanometers (nm) and determines the type of UV light emitted. Most black-light flashlights emit UV-A light, which ranges from 320 to 400 nm. For general use, a wavelength around 365-395 nm is ideal as it provides a good balance between visibility and effectiveness. If you need to detect specific substances or perform specialized tasks, you may need a flashlight with a more precise wavelength. Consider what you will be using the flashlight for and choose a wavelength that matches those needs.
Light OutputLight output, often measured in lumens, indicates the brightness of the flashlight. While black-light flashlights are not typically as bright as regular flashlights, having sufficient light output is still important for effective use. For general purposes like detecting pet stains or checking for counterfeit money, a lower lumen output (around 100-200 lumens) is usually sufficient. For outdoor use or larger areas, you might need a higher lumen output (200+ lumens). Think about the size of the area you will be illuminating and choose a light output that will provide adequate coverage.
Battery Type and LifeThe type of battery and its life are crucial for the convenience and longevity of your black-light flashlight. Common battery types include AA, AAA, rechargeable lithium-ion, and built-in rechargeable batteries. AA and AAA batteries are widely available and easy to replace, but may not last as long as rechargeable options. Rechargeable batteries are more cost-effective in the long run and environmentally friendly. Consider how often you will use the flashlight and whether you prefer the convenience of replaceable batteries or the long-term savings of rechargeable ones.
Durability and Build QualityDurability and build quality are important factors, especially if you plan to use the flashlight frequently or in rugged conditions. Look for flashlights made from high-quality materials such as aluminum or reinforced plastic. Water resistance and impact resistance are also valuable features that can extend the life of your flashlight. If you need a flashlight for outdoor use or in harsh environments, prioritize models with robust build quality and protective features.
Size and PortabilityThe size and portability of a black-light flashlight can affect how convenient it is to carry and use. Smaller, pocket-sized flashlights are easy to carry around and are suitable for quick inspections or travel. Larger flashlights may offer more power and features but can be bulkier to handle. Consider how and where you will be using the flashlight and choose a size that balances portability with the performance you need.