If you are a dog owner, odds are your canine pal has had an accident in the house at one point or another. If you’re not home at the time the crime occurs, you’ll have no idea there is a puddle of dog urine soaking into your carpet or mattress. But how do you find old dog urine stains, anyway?
Luckily, UV blacklights can detect those old dog urine stains so that you can find them to clean them up. In this guide, we’ll go over our top ten picks for the best blacklight flashlight for dogs. We’ll review each one so that you can make an informed decision that’ll suit your needs.
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A Quick Comparison of Our Favorites of 2025
A Quick Comparison of Our Favorites of 2025| Rating | Image | Product | Details | |
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Best Overall
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Vansky UV Flashlight Blacklight |
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CHECK PRICE |
Best Value
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LE Black Light Flashlight |
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CHECK PRICE |
Premium Choice
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uvBeast V2 Blacklight |
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CHECK PRICE |
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GearLight UV Blacklight |
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CHECK PRICE | |
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Kobra Black Light Flashlight |
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CHECK PRICE |
The 10 Best Blacklights for Dog Urine
1. Vansky UV Flashlight Blacklight For Dog Urine – Best Overall
| Wavelength: | 390-395 nm |
| Material: | Aluminum |
| Batteries: | 3 AA (not included) |
The Vansky UV Flashlight Blacklight reveals more than just dog urine stains; it also reveals food stains on carpet and furniture, and it detects scorpions. It has 51 LED lights that will last up to 15 years, and it only takes three AA batteries (not included). The compact design is easy to carry and will fit in your pocket, and it can detect fake currency.
It is made of aluminum alloy, and the run time is 4 to 6 hours with full batteries. The nanometers run from 390 to 395, making it perfect for detecting dog urine stains, and it comes with a 1-year warranty.
It does not detect cat urine, so if you have a kitty, look for a UV light with a nanometer from 365 to 385 for cat urine detection.
This UV light will pick up dried stains. Keep in mind that if the stain is still fresh and wet, the UV light will not pick it up. This light will also pick up everything, so it may be hard to differentiate dog urine from something else. Nonetheless, whatever it picks up, you’ll be able to clean, making it our overall best blacklight for dog urine stains, especially for the price.
- 51 LED lights
- Lasts up to 15 years
- Compact design
- 1-year warranty
- Reasonably priced
- Does not detect cat urine
- Only works on dried stains
- May be hard to differentiate between dog urine stains and other stains
2. LE Black Light Flashlight For Dog Urine – Best Value
| Wavelength: | 395 nm |
| Material: | Aluminum |
| Batteries: | 3 AAA (included) |
The LE Black Light Flashlight has a wavelength of 395 nanometers and works well for dog urine detection. This durable light is made of strong aluminum, and it’s waterproof. This light measures 3.7 inches in length and 1.1 inches in width, making it a perfect blacklight to carry in your pocket, and it has a non-slip grip.
This light has versatile uses, such as detecting food stains, currency authentication, detecting hotel cleanliness, and detecting outdoor bugs. It requires three AAA batteries that are included, and it comes with a 1-year warranty.
It does come with batteries, but they may arrive dead. It also has only 9 LED lights, making it harder to detect stains from a distance. However, for the reasonable price and small, compact design, this light is our pick for the best blacklight for dog urine for the money.
- Durable
- Small, compact design
- Non-slip grip
- Waterproof
- 1-year warranty
- Batteries may arrive dead
- Has only 9 LED lights
3. uvBeast V2 Blacklight For Dog Urine – Premium Choice
| Wavelength: | 385-395 nm |
| Material: | Aluminum |
| Batteries: | 6 AA (not included) |
The uvBeast V2 Blacklight is just that—a beast. This upgraded light gives you more bang for your buck and illuminates up to 30-plus feet away. It has the perfect wavelength range for detecting dog urine, and it has a flood-type beam. This monster of a UV flashlight is made by scientists and engineers to produce the mack daddy of all UV lights, so if you’re looking for a large UV flashlight and blacklight, this one’s for you.
This light is fairly expensive for a UV blacklight, and it’s likely you won’t need this much power to detect dog urine. However, if you spend a great deal of time camping or just being outdoors, this light can provide you with 18 watts of power.
It requires 6 AA batteries, and some consumers state the light is dim.
- Illuminates 30 plus feet
- Flood-type beam
- 18 watts of power
- Expensive
- Light may be dim
- Requires 6 AA batteries
4. GearLight UV Blacklight Flashlight XR98
| Wavelength: | 390 nm |
| Material: | Aluminum |
| Batteries: | 6 AA (not included) |
The GearLight UV Blacklight Flashlight XR98 contains 100 LED lights for a bigger and brighter view; plus, you don’t have to be in a darkened room to see stains. This light boasts a full-sized, durable design made out of military-grade aluminum with a one-touch operation. It works well for detecting dog urine stains, as well as other dried stains. Use it in hotel rooms or outdoors to detect scorpions and other bugs.
This light is strong and will show everything, making it sometimes difficult to tell if a stain is dog urine or something else. It also requires 6 AA batteries to work. The on button is at the end of the screw cap where the batteries go instead of the handle, and some people prefer the button to be on the side.
- Contains 100 LED lights
- Doesn’t require a darkened room to be used
- One-touch operation
- Hard to differentiate stains from dog urine stains
- Requires 6 AA batteries
- On button is at end of the handle
5. Kobra Black Light Flashlight For Dog Urine
| Wavelength: | 385 to 395 nm |
| Material: | Aluminum |
| Batteries: | 6 AA (not included) |
The Kobra Black Light Flashlight is a strong and durable UV light with 100 LED bulbs that provide 100,000 hours of bulb life. The light can handle shocks if dropped, and it weighs roughly 1-pound. It measures 7.2 inches in length, and the head is 3-inches wide, which gives plenty of illumination.
This light is strong enough for professional use, and it works well outdoors, too. It’s not as lightweight as the other lights on our list, but it does a good job illuminating stains. It requires 6 AA batteries, and the batteries often need replacing, which is a downside.
- Strong and durable
- Contains 100 LED bulbs
- Wide range of illumination
- Requires 6 AA batteries
- Runs through batteries often
- Heavier than other UV lights
6. GLOSSDAY Blacklight For Dog Urine
| Wavelength: | 395 nm |
| Material: | Aluminum |
| Batteries: | 6 AA (not included) |
If you’re looking for a UV light with plenty of LED bulbs, the GLOSSDAY blacklight might be a good option. It contains 128 LED bulbs for wide coverage and a strong aluminum alloy body for durability. This professional-grade light gives off 18 watts of power and will point out dog urine stains, bodily fluids, and oil stains. Of course, if you want to use it outdoors, it will detect scorpions and other insects and bugs.
It features an anti-slip grip and a 1-year money-back guarantee. It’s waterproof and offers 100,000 hours of bulb life.
If you have a kitty in your life, this UV light will not detect cat urine stains. While the wavelength is 395 nanometers, it may not be bright enough to illuminate all stains. It’s also a little pricey.
- Contains 128 LED bulbs
- Strong and durable
- Anti-slip grip
- 1-year money-back guarantee
- Does not detect cat urine
- Could be a bit brighter
- Expensive
7. Escolite UV Flashlight Blacklight
| Wavelength: | 390-395 nm |
| Material: | Metal |
| Batteries: | 3 AA (not included) |
If you’re looking for a smaller and more compact UV light, the Escolite UV Flashlight Blacklight may fit your needs. It contains 51 LED bulbs and has a decent beam size. The price is reasonable for detecting dog urine stains, and it features an anti-slip grip.
This light will do everything other UV lights will do, but it does not contain as many LED bulbs as others on our list. You’ll also need to make the room as dark as you can in order to see any stains. However, it works well for what you need it to do for the price.
- Reasonably priced
- Anti-slip grip
- Small and compact design
- Only contains 51 Led bulbs
- Needs a dark room to show stains
8. LOFTEK UV Flashlight Black Light For Dog Urine
| Wavelength: | 395 nm |
| Material: | Aluminum |
| Batteries: | 3 AA (not included) |
The LOFTEK UV Flashlight Black Light is a portable and durable blacklight that measures 5.91-inches in length and 2.17-inches in width. It’s waterproof with an anti-slip grip and 51 LED bulbs. It works well for detecting dog urine, scorpions, bed bugs, worms, leaks, and currency authentication.
The lanyard fits easily around the wrist or a belt, and it only takes 3 AA batteries. It does not, however, work to detect cat urine. You’ll want to ensure the room is dark before using this blacklight so that it will detect stains or whatever it is you’re looking for.
It’s not recommended to use rechargeable batteries because they will cause the light to short out.
- 51 LED bulbs
- Portable and durable
- Waterproof
- Anti-slip grip
- Does not detect cat urine
- Needs dark room to show stains
- Cannot use rechargeable batteries
9. DARKBEAM USB Rechargeable UV Light
| Wavelength: | 395 nm |
| Material: | Aluminum |
| Batteries: |
The DARKBEAM USB Rechargeable UV Light is a nice option to keep from constantly purchasing batteries. This portable light only contains 5 watts, and it’s not as bright as the other UV lights on our list, but it does work well for detecting dog urine. If you’re only looking for a UV for that specific purpose, this small rechargeable light may just be the ticket.
This UV flashlight light is lightweight and easily fits into your pocket or a backpack. This light also has a zoom in/out feature that allows you to widen or shorten the light range. For being so small, it’s surprisingly strong, durable, and made from aluminum alloy.
A drawback is that the light doesn’t stay charged for very long, but with its small size and affordable price, it should serve its purpose as a dog urine stain detector.
- Rechargeable
- Lightweight
- Strong, durable, and portable
- Zoom in/out feature
- Only 5 watts
- Doesn’t stay charged for long
10. MIU COLOR Blacklight UV Flashlight
| Wavelength: | 395 nm |
| Material: | Aluminum |
| Batteries: | 3 AA (not included) |
The MIU COLOR Blacklight UV Flashlight contains 21 LED bulbs with a wavelength of 395 nm. The bulbs have over a 100,000-hour lifespan, and it’s small and compact. It may not be the brightest, but for the price, it should serve you well for detecting dog urine stains.
Not only is this little UV light inexpensive, but you’ll also receive six free e-books about how to train and care for your pets.
This UV light does not detect cat urine, so look elsewhere if you have a kitty in the household.
- 385 nm
- 100,000-hour lifespan
- Comes with 6 free e-books
- Inexpensive
- Small and compact
- Not very bright
- Does not work for cat urine
Buyer’s Guide: Finding The Best Blacklight for Dog Urine
When looking for the best blacklight flashlight for dogs, here are a few things to consider.
Size
You’ll want to consider if you want a small, compact UV light or a bigger, more professional UV light. If you’re looking to buy a UV light just for dog urine stain detection, the small lights will work just fine.
Bulbs
When it comes to LED bulbs, the rule of thumb is the more, the better. If you want super bright, go with at least 51 LED bulbs or higher.
Protect Your Eyes
You don’t have to wear safety glasses while using UV flashlights; however, it’s important not to shine the lights directly into your eyes or someone else’s eyes because it could cause eye damage.
Wavelength
When looking for dog urine stains, you’ll want to go with a nanometer range of 385 nm to 395 nm. However, if you have a cat, this range will not work for finding cat urine. If you have a cat, you’ll want to stick with 365 nm to 385 nanometers.
If accidents are frequent and you’re unsure of what’s causing them or how to prevent them, a consult with your vet could help!
To talk to a vet online now, click on the image or button below:
Our Selection Process For Best Blacklight for Dog Urine
To create this buyer’s guide, our writing team and editorial staff checked customer reviews, brand reputation, and veterinary approval ratings to present the blacklight for dog urine we think should be highlighted for our readers. In some cases, we conducted hands-on testing along with seeing how much our dogs liked the blacklight for dog urine. All these factors were considered when selecting these listed blacklight for dog urine to help you make the best purchase for your furry friends.
Why Trust Dogster?
Since 2004, Dogster has been a trusted brand for dog owners online, which means we have a lot of experience with blacklight for dog urine. We take pride in promoting the well-being of all dogs—from toy breeds to giant canines. Our in-house veterinarians, writers, and editors examine each product on our lists, ensuring its quality and reputation. As pet owners ourselves, we only want the best for our furry companions. At Dogster, we are transparent about the products we promote. The nutritional information, overall brand reputation, and customer reviews are all considered for these lists. We inform you how we want to be informed.
Conclusion
The Vansky UV Flashlight Blacklight is powerful, compact, affordable, and comes with a 1-year warranty for the best overall UV flashlight. The LE Black Light is our pick for the best value with its versatility, durability, and affordable price.
We hope you have enjoyed our reviews of the best blacklights for dog urine. If this article helps you, please share this information with your family and friends so they, too, can detect dog urine stains.
Featured Image Credit By: New Africa, Shutterstock
