10 Best Blacklight Flashlights 2025 in the United States

The GearLight Black Light UV Flashlight S50 is a compact and versatile tool ideal for those needing a reliable blacklight for tasks such as ID checks, detecting pet urine, and other practical uses. One of its primary strengths is the 365 nm wavelength, which is effective for a variety of detection tasks, ranging from scorpions to hidden stains. The LED technology ensures a bright and clear light output, demonstrating effectiveness in various situations.

Designed with portability in mind, this flashlight is lightweight at just 1 ounce and compact, making it easy to carry around in a pocket or bag. The aluminum and resin build offers a balance of durability, suggesting it can withstand regular use without quickly wearing down. Additionally, the non-slip grip is a practical feature that adds to the ease of use, particularly in less than ideal weather conditions.

However, the flashlight requires batteries, which are not included in the purchase. Users will need to buy alkaline batteries separately, which could be a minor inconvenience. Furthermore, while it offers water resistance, it's not waterproof, so it may not be suitable for use in heavy rain or underwater situations.

In terms of battery life, this flashlight uses alkaline batteries, which generally provide decent longevity, although the exact life will depend on usage frequency and battery quality. Given its size, don't expect it to illuminate large areas extensively, but for close-up detection and small-scale tasks, it performs admirably.

This product is particularly beneficial for those needing a portable and effective tool for UV detection tasks and is well-suited for both personal and professional settings. Its design highlights its reliability and effectiveness in the specified roles.

The Vansky UV Flashlight Black Light is a versatile tool designed to reveal invisible stains and perform a wide range of detection tasks. It emits UV light at a wavelength of 395nm, which is suitable for detecting pet urine, food stains, and other unwanted substances on various surfaces. With 51 high-quality LEDs, it offers strong light output that can illuminate a substantial area, making it effective for tasks like scorpion spotting, currency authentication, and resin curing.

The flashlight is powered by three AA batteries (not included), which is convenient but might require frequent replacements depending on usage. Its aluminum build ensures durability, and the compact, lightweight design makes it highly portable, fitting easily into pockets or bags for on-the-go use.

Although it comes with a one-year manufacturer warranty, a potential drawback is the need for regular battery replacement, which could be an inconvenience for some users. The Vansky UV Flashlight is well-suited for pet owners, outdoor enthusiasts, and anyone needing a reliable UV light for various inspection tasks.

The GearLight UV Black Light Flashlight S100 is a compact and portable UV flashlight that is well-suited for tasks such as detecting stains, pests, and counterfeit items. Its small size (5.25 x 0.5 x 0.5 inches) and lightweight construction (1 ounce) make it easy to carry around, and it conveniently fits into a pocket or clips onto a belt or bag.

The flashlight is powered by 2 AAA batteries (not included), which are easy to find and replace, but users should be aware that the battery life could vary depending on usage. The UV light output is effective for various detection purposes. The build quality is robust, made from military-grade aluminum, making it durable enough to withstand drops and brief water exposure. This makes it suitable for rough handling and use in different environments.

One potential drawback is the absence of included batteries, which means an additional purchase is necessary to start using the flashlights. Additionally, the small size, while beneficial for portability, might mean a narrower beam compared to larger UV flashlights. Users who need a compact, durable, and portable UV flashlight for general inspection tasks and detection of invisible stains or counterfeit items will find the GearLight S100 to be a practical choice.