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 GearLight S100 LED Pocket Pen Light is a compact and versatile option for those needing a reliable flashlight for tight spaces. With a brightness of 100 lumens, it offers sufficient light for close-up tasks like inspections, medical use, and daily repairs. The flashlight is powered by two AAA batteries, which are not included, and provides a decent battery life for its size and brightness level.

Its small dimensions (5.25 x 0.5 x 0.5 inches) and lightweight design (1 ounce) make it easy to carry around, fitting comfortably in pockets or clipped onto belts and bags. This durability is notable, as the flashlight is constructed from military-grade aluminum, allowing it to withstand accidental drops and temporary water submersion, adding to its robustness for everyday and emergency use.

However, the absence of included batteries might be inconvenient for some users, and while 100 lumens is adequate for many tasks, it may fall short for those needing brighter illumination in larger areas. In summary, the GearLight S100 is a practical and durable choice for users like nurses, mechanics, or anyone needing a reliable, portable light source for close-up work and daily use.

The Streamlight 66118 Stylus Pro 100-Lumen Penlight is a solid choice for those needing a reliable and portable light source. One of its standout features is its durability, thanks to the anodized machined aircraft aluminum construction, which ensures it can withstand rough handling. The penlight produces 100 lumens of light and has a beam distance of 62 meters, making it quite effective for short to medium-range lighting needs.

With an 8-hour runtime on two AAA batteries, it offers decent battery life for extended use, though it may not be the best for long-term, continuous operation without carrying extra batteries. The IPX4 water resistance and 2-meter impact resistance add to its durability, making it suitable for outdoor activities and challenging environments. At 5.3 inches in length and weighing just 1.64 ounces, it is compact and lightweight, easy to carry in a pocket or clipped onto a belt.

The removable pocket clip is a convenient feature for everyday carry. However, the light output of 100 lumens might be insufficient for users needing brighter illumination, and the non-rechargeable nature of the penlight means you'll need to keep spare batteries on hand. In conclusion, the Streamlight 66118 is a durable, portable, and efficient penlight, best suited for tasks like cycling, hiking, or general everyday use, but may fall short in scenarios requiring higher luminosity or longer continuous use.