10 Best Tactical Pen Lights 2025 in the United States

The Streamlight 66134 Stylus Pro USB Penlight offers a solid performance for those needing a compact and reliable light source. With 350 lumens, it provides bright illumination suitable for various activities such as hiking, camping, and everyday carry. The penlight’s high mode produces a peak beam intensity of 2950 candela, reaching a distance of up to 109 meters, which is impressive for its size.

The battery life in high mode is relatively short, running only for 1.5 hours, which may be a limitation for extended use. The battery is rechargeable via USB, and the penlight includes a lithium-ion battery, making it convenient and cost-effective in the long run. Durability is a strong point, as the penlight is constructed from anodized machined aircraft aluminum and has an IPX4 water resistance rating, ensuring it can withstand tough conditions.

At 5.95 inches in length and weighing just 1.76 ounces, it's lightweight and portable, fitting easily into pockets or pouches. The sliding metal sleeve for USB port protection is a thoughtful addition. Users looking for a durable, bright, and portable penlight will appreciate its features. However, those who need longer battery life for continuous use might want to consider alternative options.

The OLIGHT O'Pen Glow is a versatile tactical pen light that combines a writing pen with a rechargeable LED flashlight featuring up to 120 lumens of brightness, which is bright enough for most everyday tasks and outdoor use. Its adjustable brightness lets you dial down the light for close-up work or increase it when you need more visibility. The green beam at the tail is a unique addition, designed to be safe and gentle on eyes and animals, useful for signaling or specialized uses.

Made from aluminum, it's sturdy yet lightweight at just over 5.5 ounces, making it comfortable to carry daily without feeling bulky. The slim design and included pen clip add to its convenience, allowing easy attachment to pockets or gear. It charges via a magnetic charging base and USB-C cable, reducing the need to replace batteries often. The pen light is not officially water resistant, so it is best avoided in heavy rain or wet conditions. While well-made and multifunctional, it might be a bit pricier than simpler pen lights.

This model is suited for those seeking a high-quality, rechargeable tactical pen light that serves both practical writing and lighting needs. It is ideal for outdoor enthusiasts, professionals, or anyone wanting a reliable everyday carry tool with extra features.

The Streamlight 66120 Stylus Pro is a compact and lightweight pen light designed mainly for professionals like law enforcement, medical staff, and technicians who need reliable, close-range illumination. It provides a bright white LED output of 100 lumens, which is sufficient for detailed inspections and low-light tasks without being overly powerful or draining batteries quickly. Speaking of batteries, it runs on two AA alkaline batteries (included), offering easy replacement and decent runtime for daily use.

The pen light is built tough with an aluminum and polycarbonate body, tested for impact resistance up to 1 meter and rated IPX4 water resistance, making it durable enough for field conditions though not fully waterproof. Its slim, 5.3-inch size and light weight (about 1.6 ounces) make it easy to carry in pockets or clip onto gear comfortably. Additional features include a mounting clip and a nylon holster for convenience.

If you need extremely bright light for long distances or extended battery life for continuous use, this might not be the best fit. While the IPX4 rating protects against splashes, it is not suitable for heavy rain or submersion. This pen light performs well for everyday carry and professional close-up work where portability, moderate brightness, and durability are key.