Olight Arkfeld Lineup Compared: Original, UV, Pro, and Flex

Introduction

Olight’s Arkfeld family has grown into four distinct models, all built around the same idea: a flat, slim flashlight that carries as comfortably as a small penlight while offering far more capability. All four share a pocket-friendly thickness similar to a AAA light, yet each variation pushes the format in a slightly different direction. Choosing between them comes down to which extra functions you will actually use.

The Lineup at a Glance

All Arkfeld models are IPX7 waterproof, which means they handle rain, splashes, and accidental drops into water without a second thought. That alone makes them easy to live with as daily carry lights, since you never really have to worry about the weather or a wet environment.

Every model in the family keeps the same flat, comfortable carry profile. If you are used to a AAA flashlight, the thickness feels nearly identical despite everything packed inside.

Olight Arkfeld (Original)

The original Arkfeld combines a white light with a laser, and a single switch lets you change between the two. It is the sleekest and smallest-feeling member of the family, and its clean look works especially well in an office environment. If you want something elegant that also doubles as a laser pointer, this is the model that leans hardest into that role.

It is smaller than the Arkfeld Pro, and while the Pro adds more functionality, the original remains a strong pick if you value a slim, refined form factor above extra light sources.

Olight Arkfeld UV

The Arkfeld UV adds an ultraviolet source on top of a standard white light, and it brings a slimmer form factor with a reversible clip. That reversible clip makes it noticeably better for clipping to a hat and using hands-free. It is a solid two-in-one for office settings where a laser pointer or occasional UV check comes in handy.

However, with the arrival of the Pro, this model has largely been outclassed in pure capability. Most buyers considering the UV should look at the Pro instead.

Olight Arkfeld Pro

The Arkfeld Pro is essentially a strict upgrade to the UV model. It carries a brighter UV light, a noticeably brighter laser, and a brighter main light at 1,300 lumens with similar run times to the other two. It also keeps the reversible clip, so the hands-free hat-clip use case is still covered, and it remains a relatively light flashlight compared to larger conventional lights. It runs on a built-in lithium polymer battery.

One genuinely useful addition: press the switch to turn on the laser, then double press, and you get the laser and the white light at the same time. While that combined mode is active, you can also step the white light down to a lower output while the laser stays on.

Important Note for Pro Buyers: The Strobe and Turbo Swap

A change in the newest Arkfeld Pro units has caught some buyers off guard. On most Olight side-switch lights, a double press activates turbo. On the newest Pro iterations, a double press instead activates strobe. If you expected turbo, this is genuinely annoying the first time it happens.

The good news is that the behavior is swappable, and nothing has been removed. To switch between strobe and turbo on the double press: turn the light off, press and hold to enter moonlight mode, and let it turn off, which locks the light out. While locked out, click the switch ten times quickly, then press and hold on any of those clicks. The light will blink twice to confirm the setting has been swapped. Unlock the light, and the double press will now behave the way you prefer.

Olight Arkfeld Flex

The Arkfeld Flex takes a different approach to hands-free use. Instead of relying on a hat clip, it attaches magnetically and can be angled, so you can put it on the front of your shirt, tilt the head upward, and work with both hands free. This makes it especially appealing for people who do not wear ball caps. The multi-directional clip adds further flexibility in how and where you mount it.

Output sits at 1,000 lumens, which is plenty for daily carry tasks. A high-CRI variation would be a welcome future addition, but as a versatile, everyday work light, the Flex is an easy recommendation for anyone who does not need the laser or UV functions.

Which One Should You Choose?

Of the four, the three most worth considering are the original, the Pro, and the Flex. The UV has been effectively superseded: if its combination of functions appeals to you, the Pro delivers the same skill set at a higher output level.

The original suits buyers who want the smallest, cleanest-looking light in the family, particularly in an office context. The Pro suits anyone who wants the fullest feature set, since it combines laser, UV, and a bright main light with the reversible clip. The Flex suits users who prioritize hands-free versatility, magnetic mounting, and an adjustable angle over extra light sources.

Conclusion

The Arkfeld family succeeds because every model keeps the same slim, waterproof, easy-carry formula while addressing a different need. The original is the elegant minimalist choice, the Pro is the all-rounder with the most capability, and the Flex is the most adaptable hands-free work light. The UV remains a fine light, but the Pro simply does more. Know the strobe-and-turbo swap trick on the Pro, match the model to how you actually carry and use a light, and any of the three main options will serve you well.