--- product_id: 329245895 title: "GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack" brand: "gearlight" price: "$41.39" currency: USD in_stock: true reviews_count: 8 category: "Gear Light" url: https://www.desertcart.us/products/329245895-gearlight-uv-flashlight-s50-365-nm-mini-blacklight-ultraviolet-pen store_origin: US region: United States of America --- # 5.25 in compact pen size - ultimate portability 365 nm UV wavelength - optimal curing & detection Military-grade aluminum - rugged durability GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack **Brand:** gearlight **Price:** $41.39 **Availability:** βœ… In Stock ## Summary > πŸ”¦ Illuminate the unseen, cure with precision β€” your pocket-sized UV powerhouse! ## Quick Answers - **What is this?** GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack by gearlight - **How much does it cost?** $41.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/329245895-gearlight-uv-flashlight-s50-365-nm-mini-blacklight-ultraviolet-pen) ## Best For - gearlight enthusiasts ## Why This Product - Trusted gearlight brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Endure:** Military-grade aluminum body resists drops and brief water exposure for long-lasting use. - β€’ **Precision UV Power:** 365 nm wavelength delivers targeted, efficient resin curing and invisible stain detection. - β€’ **Versatile Detection:** Perfect for ID verification, pet stain spotting, scorpion detection, and counterfeit money checks. - β€’ **Dual-Pack Efficiency:** Two flashlights included to double your workflow or keep a reliable backup on hand. - β€’ **Pocket-Sized Convenience:** Slim 5.25-inch design with removable clip fits seamlessly into your daily carry. ## Overview The GearLight UV Flashlight S50-365 nm is a compact, pen-sized blacklight designed for professional-grade resin curing, stain detection, and document authentication. Powered by 2 AAA batteries and built with military-grade aluminum, it offers durable, water-resistant performance. This 2-pack delivers optimal 365 nm UV wavelength light, perfect for detailed resin work and revealing hidden marks, making it an essential tool for 3D printing enthusiasts, inspectors, and everyday pros. ## Description Product description Review: The Perfect Cure for Resin Miniatures - GearLight UV Flashlight is a Game Changer! - As someone deeply engaged in the world of 3D printing, particularly with resin miniatures, I recently tried the GearLight Black Light UV Flashlight S50, and I must say, it's a game changer! These compact UV flashlights have made the post-processing of my resin prints not just easier, but more effective and efficient. Ideal Wavelength for Curing: The 365 nm wavelength of these UV flashlights is perfect for curing resin. It's the optimal range for ensuring that my miniatures cure evenly and thoroughly, which is crucial for maintaining the fine details and structural integrity of the prints. I've noticed a significant improvement in the finish and durability of my miniatures since using the GearLight flashlights. Compact and Easy to Handle: The pen-like design of these flashlights is a major plus. They are incredibly easy to handle, allowing for precise application of UV light to specific areas of the miniature. This precision is particularly beneficial for complex prints with intricate details. Their compact size also makes them easy to store in my workspace, which is always a bonus. Powerful and Efficient: Don't let the size fool you - these flashlights pack a punch! The intensity of the UV light is impressively strong for such a small device. It cures the resin quickly and effectively, saving me a lot of time in the post-processing stage. Additionally, being battery-operated and portable, I can use them anywhere, which adds to the convenience. Durability and Build Quality: The build quality of the GearLight UV flashlights is top-notch. They feel sturdy and well-made, which gives me confidence that they will last a long time. The durability is important, given the frequent use they get in my resin printing projects. Value for Money: The fact that this comes as a 2-pack is incredible value for money. Having two flashlights means I can work on multiple miniatures at once or have a backup ready, ensuring my workflow is uninterrupted. Conclusion: In conclusion, the GearLight Black Light UV Flashlight S50 is an outstanding tool for anyone working with 3D printed resin miniatures. Its optimal wavelength, compact design, powerful light, quality construction, and great value make it an indispensable part of my 3D printing toolkit. I highly recommend it to fellow 3D printing enthusiasts for an enhanced and efficient post-processing experience. Review: Very small, but very bright - This is a pair of very tiny penlights. Just large enough for a single AAA battery. Although they warn you that this might not seem very bright, it seems bright enough to me. I am using this for UV leak detection and the dyed UV detector oil lights up very brightly under this beam. It is constructed of a very heavy and solid material with a good finish and a matte black textured surface. It feels very heavy in the hand for its small size. There are no moving parts except for the button on the end. The light switches on and off without any flickering or flakiness that you might typically see in cheap LED flashlights. Since it's 365nm UV light, it should also work better for pet urine stains than the 385nm lights sold for this purpose. Even though this is a small penlight with a tight beam, it will light up UV leak detector dye without a problem and you'll be able to easily see pet stains in a darkened room. ## Features - COMPACT - This sleek and portable UV flashlight is portable and compact enough to fit in your pocket. They illuminate unknown stains, pests, dye, and other spots that can't be seen with the human eye by making them glow. - ULTRAVIOLET - The bright UV light beam can be used for detection of concentrated areas on furniture, clothes or shoes. Each ultraviolet light is powered with 2 standard AAA batteries (batteries not included). - DURABLE - Engineered for rough handling, these durable blacklight flashlights are made of military-grade aluminum that can survive accidental drops and brief water submersions. - PORTABLE - Take this mini uv resin light with you wherever you go. The removable pocket clip can easily be attached to your belt, bag, binder, shirt or pants pocket. - SIZE - Measuring 5.25 x 0.5 x 0.5 inches, these small UV flashlights also work to authenticate identification, official documents, and passports or as a counterfeit money inspector. Also great for curing resin. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B089P1NMMB | | Additional Features | Non Slip Grip | | Batteries are Included | No | | Battery Description | Alkaline | | Battery Type | Alkaline | | Best Sellers Rank | #6,540 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #96 in Handheld Flashlights | | Brand Name | GearLight | | Bulb Base | B22D | | Bulb Shape Size | B10 | | Color | Black | | Customer Reviews | 4.3 out of 5 stars 836 Reviews | | Item Weight | 0.06 Pounds | | Light Output Maximum | 100 Lumens | | Light Source Special Features | Non Slip Grip | | Light Source Type | LED | | Manufacturer | GearLight | | Manufacturer Part Number | GL-UMFS50-2P | | Material | Aluminum , Resin | | Material Type | Aluminum, Resin | | Model Number | GL-UMFS50-2P | | Mounting Type | Handheld | | Number of Batteries | 2 AAA batteries required. | | Number of Light Sources | 2 | | Power Source | Battery Powered | | Recommended Uses For Product | ID checking, pet urine detection, revealing hidden stains, hotel room inspections, scorpion detection, currency authentication, and various professional uses | | Set Name | 2 Pack | | Shape | Pen | | Size | 2 Pack, (S50 Pocket Light) | | Special Feature | Non Slip Grip | | Specification Met | true | | Style Name | S50 UV (2Pck) | | UPC | 858362007935 | | Unit Count | 2.00 Count | | Voltage | 3 Volts | | Water Resistance Level | Water Resistant | | White Brightness | 100 Lumens | ## Product Details - **Color:** Black - **Light Source Type:** LED - **Material:** Aluminum, Resin - **Power Source:** Battery Powered - **Special Feature:** Non Slip Grip ## Images ![GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack - Image 1](https://m.media-amazon.com/images/I/713t8MiFo9S.jpg) ![GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack - Image 2](https://m.media-amazon.com/images/I/618lgFHQpUS.jpg) ![GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack - Image 3](https://m.media-amazon.com/images/I/717BX5wLlyS.jpg) ![GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack - Image 4](https://m.media-amazon.com/images/I/71taIHmR8VS.jpg) ![GearLight UV Flashlight S50-365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - (Pocket Light) - 2 Pack - Image 5](https://m.media-amazon.com/images/I/71ymCPym+IS.jpg) ## Available Options This product comes in different **Color, Style** options. ## Questions & Answers **Q: Will this work with a 10440 battery?** A: Hello there, Thanks for reaching out to us! I hope you're having an excellent week! Yes, any AAA batteries will work on our GearLight Black Light UV Flashlight S50 [2 Pack]. Hope this helps. Let us know if there's anything else we can assist with. Keep safe! All the best, GearLight Customer Obsession Champion **Q: Can this detect fingerprints?** A: Not certain, but you can use a UV light to detect fingerprints, but on some surfaces, you need additional items such as powders, etc. to make them stand out. I would say it depends upon the type of surface, but this item does not claim specifically to be able to detect fingerprints from what I read. **Q: Detecta fugas en aire acondicionado uv. ?** A: Hola Guillermo, SΓ­, es cierto. Β‘Espero que esto ayude! Todo lo mejor, **Q: Made in China?** A: Hello there, Thank you for reaching out. Our products are designed in the US and made and manufactured in China under US quality standards. We hope this answers your question. Should you have any other questions in the future, please feel free to reach out to us anytime. Keep safe and take care! All the best, GearLight Customer Support ## Customer Reviews ### ⭐⭐⭐⭐⭐ The Perfect Cure for Resin Miniatures - GearLight UV Flashlight is a Game Changer! *by J***S on November 23, 2023* As someone deeply engaged in the world of 3D printing, particularly with resin miniatures, I recently tried the GearLight Black Light UV Flashlight S50, and I must say, it's a game changer! These compact UV flashlights have made the post-processing of my resin prints not just easier, but more effective and efficient. Ideal Wavelength for Curing: The 365 nm wavelength of these UV flashlights is perfect for curing resin. It's the optimal range for ensuring that my miniatures cure evenly and thoroughly, which is crucial for maintaining the fine details and structural integrity of the prints. I've noticed a significant improvement in the finish and durability of my miniatures since using the GearLight flashlights. Compact and Easy to Handle: The pen-like design of these flashlights is a major plus. They are incredibly easy to handle, allowing for precise application of UV light to specific areas of the miniature. This precision is particularly beneficial for complex prints with intricate details. Their compact size also makes them easy to store in my workspace, which is always a bonus. Powerful and Efficient: Don't let the size fool you - these flashlights pack a punch! The intensity of the UV light is impressively strong for such a small device. It cures the resin quickly and effectively, saving me a lot of time in the post-processing stage. Additionally, being battery-operated and portable, I can use them anywhere, which adds to the convenience. Durability and Build Quality: The build quality of the GearLight UV flashlights is top-notch. They feel sturdy and well-made, which gives me confidence that they will last a long time. The durability is important, given the frequent use they get in my resin printing projects. Value for Money: The fact that this comes as a 2-pack is incredible value for money. Having two flashlights means I can work on multiple miniatures at once or have a backup ready, ensuring my workflow is uninterrupted. Conclusion: In conclusion, the GearLight Black Light UV Flashlight S50 is an outstanding tool for anyone working with 3D printed resin miniatures. Its optimal wavelength, compact design, powerful light, quality construction, and great value make it an indispensable part of my 3D printing toolkit. I highly recommend it to fellow 3D printing enthusiasts for an enhanced and efficient post-processing experience. ### ⭐⭐⭐⭐⭐ Very small, but very bright *by J***. on March 30, 2026* This is a pair of very tiny penlights. Just large enough for a single AAA battery. Although they warn you that this might not seem very bright, it seems bright enough to me. I am using this for UV leak detection and the dyed UV detector oil lights up very brightly under this beam. It is constructed of a very heavy and solid material with a good finish and a matte black textured surface. It feels very heavy in the hand for its small size. There are no moving parts except for the button on the end. The light switches on and off without any flickering or flakiness that you might typically see in cheap LED flashlights. Since it's 365nm UV light, it should also work better for pet urine stains than the 385nm lights sold for this purpose. Even though this is a small penlight with a tight beam, it will light up UV leak detector dye without a problem and you'll be able to easily see pet stains in a darkened room. ### ⭐⭐⭐⭐ Good lights for good price. Compact factor makes it good. *by M***X on February 25, 2025* Light is a little weak but overall gets the job done. ## Frequently Bought Together - GearLight Black Light UV Flashlight S50 [2 Pack] - 365 nm Mini Blacklight Ultraviolet Pen Flashlights for ID Check, Leak AC Detection, Resin Curing - Pet Urine, Scorpion, Stain Handheld Detector - Morpilot Blacklight Flashlights uv Flashlight,12 LED 395nm Ultraviolet Blacklight 2 PCS Black Light Flashlight Mini, Torch Light Pet Urine Detector Light for Dog/Cat, Dry Stains,Resin Curing,Bed Bug - Vansky UV Flashlight Black Light, 51 LED Blacklight Pet Urine Detector for Dog/Cat Urine, Dry Stains, Bed Bug, Resin Curing, Scorpions Finder --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/329245895-gearlight-uv-flashlight-s50-365-nm-mini-blacklight-ultraviolet-pen](https://www.desertcart.us/products/329245895-gearlight-uv-flashlight-s50-365-nm-mini-blacklight-ultraviolet-pen) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-23*