We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy

10 Best Black Light Flashlights 2025 in the United States

How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

headphones-stars

Our Top Picks

#1

Winner

Streamlight 66149 Stylus Pro USB 400nm UV Rechargeable Penlight with USB Cord and Nylon Holster, Black

Rating
10.0
Chosen by1,261
Wavelength
Light Output
Battery Type and Life

Most important from
29405 reviews

Wavelength
Regulated UV output ensures consistent brightness, suitable for detecting stains, pet urine, or counterfeit money effectively.
Light Output
The light provides a strong, focused beam that’s bright enough for detailed inspection without overwhelming the area with glare.
Battery Type and Life
Battery life is efficient, delivering long use without frequent replacements, and the rechargeable battery adds convenience and cost savings.
Durability and Build Quality
Its durable aluminum body stands up to rough conditions, even surviving being run over and still working perfectly.
Size and Portability
The compact and sleek design makes it incredibly easy to carry in a pocket or bag without adding bulk.

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.

You can expect around 2 to 2.5 hours of continuous UV light per charge, which is reasonable for short tasks but might require recharging for extended use. The aluminum body feels durable and sturdy, with a water-resistant sliding metal sleeve that protects the USB port, adding to its durability for everyday or outdoor use. Its slim, penlight shape and light weight under 4 ounces make it very portable and easy to carry in a pocket or holster.

It does not come with standalone lithium batteries to swap out, so you’re dependent on recharging it. While the UV output is stable due to regulated output, the runtime is moderate compared to some models with longer battery life. This flashlight suits professionals or hobbyists who need a dependable, rechargeable black light in a compact form, but those needing longer continuous use without recharging might want to consider alternatives.

Rating
10.0
Chosen by1,261
Wavelength
Light Output
Battery Type and Life

Most important from
29405 reviews

Wavelength
Regulated UV output ensures consistent brightness, suitable for detecting stains, pet urine, or counterfeit money effectively.
Light Output
The light provides a strong, focused beam that’s bright enough for detailed inspection without overwhelming the area with glare.
Battery Type and Life
Battery life is efficient, delivering long use without frequent replacements, and the rechargeable battery adds convenience and cost savings.
Durability and Build Quality
Its durable aluminum body stands up to rough conditions, even surviving being run over and still working perfectly.
Size and Portability
The compact and sleek design makes it incredibly easy to carry in a pocket or bag without adding bulk.
#2

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

Rating
9.1
Wavelength
Light Output
Battery Type and Life

Most important from
3028 reviews

Wavelength
At 365nm, the visibility, detail, and ability to photograph UV reactions are immensely better compared to higher wavelengths.
Light Output
The flashlight's power and long-range beam make it perfect for outdoor activities like hiking and mining trips.
Battery Type and Life
The included rechargeable batteries last a long time, though having an extra set can be beneficial for extended use.
Durability and Build Quality
The build quality feels substantial and durable, designed to hold up for years of use, even with double O-ring seals.

The uvBeast New V3 365nm Black Light UV Flashlight is designed for professional and commercial use, offering high definition ultraviolet light at a 365nm wavelength. This is ideal since 365nm is considered the gold standard for UV light, providing superior results compared to 395nm wavelengths. The flashlight features triple LEDs that offer an impressive total UV radiant intensity of 5400 uW/cm2, making it one of the highest intensity devices in its category.

Additionally, the flashlight boasts a long-range beam capability, extending up to 60 feet, which is quite advantageous for various professional applications like inspections and forensic investigations. The light output is filtered to block unwanted visible light, ensuring maximum transmission of pure 365nm UV light. The build quality is robust, made from black anodized aerospace-grade aluminum, which promises durability and longevity.

It is also portable, weighing 13.3 ounces and measuring 8.66 x 2.17 x 0.91 inches, making it easy to carry around for different tasks. The flashlight is powered by 3 AA batteries, which are included, and is convenient for users who prefer non-rechargeable options. On the downside, it requires pre-installed batteries with an insulation tab that needs to be removed, which might be a minor inconvenience for some users. Despite this, the professional-grade specifications make it a reliable choice for those needing a high-performance black-light flashlight.

Rating
9.1
Wavelength
Light Output
Battery Type and Life

Most important from
3028 reviews

Wavelength
At 365nm, the visibility, detail, and ability to photograph UV reactions are immensely better compared to higher wavelengths.
Light Output
The flashlight's power and long-range beam make it perfect for outdoor activities like hiking and mining trips.
Battery Type and Life
The included rechargeable batteries last a long time, though having an extra set can be beneficial for extended use.
Durability and Build Quality
The build quality feels substantial and durable, designed to hold up for years of use, even with double O-ring seals.
#3

uvBeast V3 385-395nm Black Light UV Flashlight - High Power Upgraded Triple Broad Band LEDs Best for Professional/Commercial Use - USA Stock

Rating
8.8
Light Output
Battery Type and Life
Durability and Build Quality

Most important from
3362 reviews

Light Output
The uvBeast v3 is the most powerful UV flashlight, with a central spot of 11 degrees and a surrounding fill of 63 degrees.
Battery Type and Life
A 4-hour recharge is optimal for its 18650 batteries, ensuring long-lasting performance.
Durability and Build Quality
The build quality is exceptional, withstanding outdoor use and beach combing with ease.
Size and Portability
The uvBeast is incredibly portable, unlike bulky setups with extension cords.

The uvBeast New V3 Black Light UV Flashlight is designed for professional and commercial use, offering significant advancements over older models with 100 LEDs. The flashlight operates within a wavelength range of 385-395nm, which is suitable for a variety of UV applications. Its light output is notably high, thanks to the upgraded triple 1.2A UV LEDs, providing a powerful beam that extends up to 70 feet, and potentially detecting UV fluorescence from even further distances.

This intensity makes it an excellent choice for tasks requiring strong UV illumination, such as inspections or forensic investigations. Additionally, the improved power delivery system of the V3 model helps to reduce running costs, offering more efficiency compared to previous versions that use older LED technology.

The flashlight is battery-powered. The build quality appears robust, with an aluminum body that promises durability. The uvBeast New V3 is a powerful and efficient UV flashlight best suited for professionals who need reliable and intense UV light output.

Rating
8.8
Light Output
Battery Type and Life
Durability and Build Quality

Most important from
3362 reviews

Light Output
The uvBeast v3 is the most powerful UV flashlight, with a central spot of 11 degrees and a surrounding fill of 63 degrees.
Battery Type and Life
A 4-hour recharge is optimal for its 18650 batteries, ensuring long-lasting performance.
Durability and Build Quality
The build quality is exceptional, withstanding outdoor use and beach combing with ease.
Size and Portability
The uvBeast is incredibly portable, unlike bulky setups with extension cords.

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.

FAQ

Most Popular Categories Right Now