395nm UV LED Penlight – Invisible Ink & Pet Stain Detector

395nm UV LED Penlight – Spot What the Naked Eye Can't See

This compact 395nm ultraviolet penlight is your go-to tool for revealing hidden details in everyday life. Whether you're checking banknotes for authenticity, hunting for invisible ink markings, or locating pet stains on carpets and upholstery, this pocket-sized UV flashlight delivers powerful 395nm–365nm ultraviolet illumination with up to 200 lumens of output — all in a sleek, clip-equipped pen form factor.

Key Features

• 395nm–365nm UV Light Source: Highly effective for detecting fluorescent markings, invisible ink, and residue stains that are invisible under normal lighting.
• Up to 200 Lumens: Bright, dazzling UV output for confident, accurate detection.
• Adjustable Focus: Convex lens reflector with stretch-to-focus adjustment — zoom in or widen the beam for different tasks.
• 3 Light Modes: High – Low – Strobe, selectable with a single on/off button.
• Anti-Skid & Waterproof Design: Rugged construction stands up to outdoor use — camping, hiking, and more.
• Clip-On Portability: Built-in pocket clip keeps your UV penlight ready at all times — attaches to shirts, pockets, or bags with ease.
• Wide Voltage Compatibility: Maximises battery life across a range of battery charge levels.
• CE, FCC & RoHS Certified: Meets international safety and compliance standards.

What Can You Use It For?

• 💵 Banknote & Document Verification: Instantly reveal security markings on currency, IDs, and passports.
• 🐾 Pet Stain Detection: Locate dried pet urine and other organic residue on floors and furniture.
• ✍️ Invisible Ink: Perfect for escape rooms, kids' activities, and secure note-writing.
• 🏕️ Outdoor Use: Hunting, climbing, camping, and night activities.
• 🔍 Leak Detection & Inspection: Identify fluorescent dye traces used in HVAC and plumbing leak-check kits.

Specifications

⚠️ Safety Note: Never aim directly at eyes. Remove batteries during extended storage periods.

Explore More From Our Store

Looking for more useful inspection and outdoor tools? Check out these popular picks:

• 0–100mm Tiny Digital Vernier Caliper | Portable Measuring Tool
• 1.2M Carbon Fiber Invisible Selfie Stick for DJI & Insta360

External Resource

For guidance on UV safety and proper usage of ultraviolet light equipment, refer to the CDC – UV Radiation Safety Guidelines.

Frequently Asked Questions

Q: What wavelength does this UV flashlight emit, and what is it best at detecting?

A: This UV penlight operates at 395nm–365nm ultraviolet wavelength, making it highly effective at revealing fluorescent markings on banknotes, detecting invisible ink, locating pet stains on carpets and upholstery, and identifying fluorescent dye traces used in leak detection.

Q: Does this UV flashlight come with batteries?

A: No, batteries are not included. The penlight requires 2 × AA batteries, which are widely available. The wide voltage compatibility design ensures maximum battery life regardless of charge level.

Q: Can I adjust the focus on this UV penlight?

A: Yes! The convex lens reflector allows you to adjust the focus by stretching the head of the flashlight, letting you shift between a concentrated spot beam and a wider flood beam depending on your task.

Q: Is this UV penlight safe to use indoors and outdoors?

A: Absolutely. The anti-skid, waterproof design makes it suitable for both indoor tasks like document verification and outdoor activities such as camping, hunting, and climbing. Always avoid directing the UV beam at eyes.