10 Best Pen Flashlights 2026 in the United States

The OLIGHT Arkfeld Pro is a compact and versatile pen-flashlight designed for everyday carry and outdoor use. It packs a strong 1300-lumen white LED, delivering bright and clear illumination suitable for most tasks. What sets it apart is the inclusion of three light sources: white, green beam, and a powerful UV light at 365nm, which is stronger and more professional than typical UV flashlights. This makes it useful not just for general lighting but also for specialized needs like detecting fluorescent materials or working in dark environments.

The flashlight is rechargeable with a built-in lithium polymer battery, and it features a helpful battery level indicator that shows you how much power remains, so you’re not caught off guard. Its sturdy aluminum build offers good durability and water resistance, making it reliable in various conditions. The size is compact, fitting comfortably in your pocket at just under 5 inches long and weighing about 6 ounces, so it’s easy to carry around all day.

Switching between the three light modes is done via a circular selector, which is intuitive but might take a little getting used to if you prefer simpler on/off buttons. The green beam output is low-powered (class 3R), which is safe but less bright compared to the white light, mainly serving specialized purposes rather than wide illumination. For those seeking a pocket-friendly flashlight that covers general bright lighting and also offers UV and green light options for outdoor, emergency, or work use, the Arkfeld Pro represents a solid choice. However, if you only need a basic white light or prefer simpler controls, this might feel a bit more complex than necessary.

The OLIGHT O'Pen 3 is a compact and versatile pen-flashlight designed for everyday carry, blending a writing tool with multiple lighting options. It offers up to 120 lumens of bright white light, which is ample for office tasks, presentations, and outdoor use. The inclusion of red and green beams is a unique plus, helping with night vision and safe signaling without harming eyes or animals. Its battery is rechargeable via USB-C, fully charging in about an hour, and supports a long runtime of up to 25 hours, reducing the hassle of frequent replacements.

The pen light is made of durable aluminum, making it sturdy yet lightweight at just over 4 ounces, easy to carry in pockets with a spring-loaded clip. The switch is a 3-position toggle for quick and intuitive mode changes—this is helpful for switching between different lights swiftly. The pen refill system is compatible with previous models, offering writing comfort and replacement options.

This product is well suited for professionals or anyone who wants a reliable pen-flashlight combo with varied lighting modes and modern charging. However, it may not be ideal if you require long-distance illumination or a bulkier grip for extended writing sessions.

The OLIGHT Oclip Pro EDC Flashlight is a compact and versatile pen-flashlight that shines with a maximum brightness of 500 lumens. This level of brightness makes it suitable for a variety of uses, from cycling to outdoor adventures and indoor tasks. The flashlight features three lighting options: a powerful floodlight, a spotlight with a 120-meter range, and a low-intensity red light, catering to different lighting needs. The user-friendly design allows for easy switching between modes, and the battery indicator keeps you informed about its charge level.

One of the Oclip Pro's highlights is its lightweight build, weighing only 1.87 oz (53 g) and measuring just 2.24 inches (57 mm) long. This portability makes it an excellent choice for everyday carry. Additionally, the flashlight is designed with multiple fixing methods, including a magnetic base and a lanyard hole, allowing for convenient attachment and use in various situations. The Type-C rechargeable feature adds to its practicality, and being IPX6 waterproof ensures it can withstand splashes and rain.

There are a few drawbacks to consider. While the flashlight is highly portable, its small size may compromise the functionality of larger flashlights, particularly in terms of battery life under heavy use. The initial moonlight mode can be a bit confusing for first-time users, requiring a long press to switch modes. Furthermore, while the durability is good for everyday use, those seeking a rugged flashlight for extreme conditions might want to explore options with tougher construction.