Streamlight 66149 Stylus Pro UV Penlight – USB Rechargeable 400nm, Compact Aluminum

Meet the Streamlight 66149 Stylus Pro UV, a pen-sized UV flashlight designed for quick verification and on-the-go inspections. The 400 nm UV LED delivers focused illumination with a measured output that supports spotting details that aren’t visible under ordinary light. Its compact form pairs with a tail-cap switch that offers both momentary and constant-on operation, so you can adapt to the moment. The aluminum body is finished with Type II Military Spec anodizing for enhanced durability and abrasion resistance, making it a reliable companion for daily carry. A removable pocket clip and included holster support secure, easy access and safe transport in pockets, tool bags, or belts. A water-resistant sliding metal sleeve protects the USB charging port, with a purple sleeve differentiation to distinguish this model from other UV options. The device ships as a complete package with the USB charging cord included, reflecting a practical approach to on-site charging.

Why this UV penlight stands out is its combination of portability and steady performance. The lithium-ion battery fully recharges in-device in about 2.5 hours, minimizing downtime between checks. Output remains fully regulated throughout the life of the battery, so you experience consistent ultraviolet performance from first use to the end of its run. It’s important to note that the product does not include standalone lithium batteries, which aligns with Streamlight’s charging design and the included USB solution. In short, the Stylus Pro UV is built for professionals who need a compact, dependable UV flashlight for on-site verification and lightweight investigations.

Key features

• No standalone lithium batteries are sold with the product
• 400nm ultraviolet LED with 325 mW measured system output; runs 2.5 hours (does NOT include white LED)
• Fully regulated output for consistent UV performance over the battery life
• Lithium ion battery fully recharges in-product in 2.5 hours
• Water-resistant sliding metal sleeve protects USB port; sleeve is purple to differentiate from other models

Practical uses

Whether you’re inspecting documents for authenticity, conducting field forensics-like checks, or surveying engine and HVAC components for UV-visible traces, the Stylus Pro UV offers a compact, unobtrusive tool that slips into a pocket or holster. The rugged aluminum construction supports regular use in varied environments, while the USB charging path keeps you ready without bulky batteries. The included holster and pocket clip ensure quick access during fast-paced tasks. The combination of portability, durability, and UV capability positions this light as a versatile option for professional workflows that rely on UV verification and quick visual checks.

Real-world benefits

• Pocket-friendly tool you can carry daily
• USB recharge keeps you ready without swapping batteries
• Durable, abrasion-resistant housing for challenging environments
• Professional UV illumination without bulky gear

For long-term reliability, this Streamlight option is backed by a limited lifetime warranty, reinforcing its place as a dependable tool for on-site verification and lightweight investigative tasks.