Traditional cylindrical flashlights have a bad habit of rolling right off the table the second you set them down. Even worse, they leave an uncomfortable, massive bulge in your front jeans pocket that makes you look like you are carrying a baton around. That is exactly why the Olight ArkPro Ultra completely caught my attention.

Olight totally threw out the old flashlight rulebook and designed a flat, premium rectangular pocket light that stacks four separate tools into a smooth unibody shell. It handles like a slim appliance remote rather than a clunky tube. If you are tired of everyday carry gear that weighs you down or rolls away when you need it most, this flat profile design is built to change your daily work habits completely.

Four Massive Lights and Seven Ways to Use Them

Olight packed an incredible amount of versatility into this small 4.16-ounce body by giving you four separate light sources. By spinning the built-in, textured rotary dial selector, you can toggle between a massive 1,700-lumen Pure Flood beam and a focused 800-lumen spotlight. To understand what that means, the flood beam behaves like a giant, soft wall of clear light that perfectly fills a dark attic or an entire workspace without any weird color rings. The spotlight is your high-beam option, letting you see much farther out when you are scanning an area or looking for someone lurking in the shadows.

On top of the white beams, you get a high-contrast 365nm UV light with low and high power modes to help spot fluid leaks or stains. Finally, there is a Class 3R green laser beam controlled by its own dedicated side switch. The real magic is that the green laser can run completely on its own or simultaneously alongside the flood, spotlight, or UV rays. This gives you 7 custom configurations, which means you can illuminate a whole wall with the flood beam while using the laser to point out exact structural spots to someone else.

While the light is off, a two-second press locks it, and a one-second press unlocks it. To change the light levels, merely long-press the center button for slightly less than one second.

Shrug Off Dents and Concrete Drops

The absolute first thing you notice when this light touches your hand is the solid, indestructible build quality. Olight constructed this shell from their proprietary O-aluminum alloy, which is 1.73 times harder than the standard 6061 aluminum you find on almost every other consumer flashlight on the market.

To put that in plain terms, you can accidentally drop this light out of your pocket onto solid concrete or scrape it against jagged metal frames on a site visit, and it will simply shrug off scratches and dents like nothing happened. It gives you an incredible sense of confidence that the tool will survive tough environments.

A Flat Profile That Stays Exactly Where You Put It

Let’s talk about the real-world geometry of this piece. It measures 4.88 inches long, 1.06 inches wide, and just 0.63 inches thick. Because of that slim form factor, it effortlessly slides into a normal pocket or a side slot on your camera bag, backpack or purse without creating any bulk.

Olight also included a heavy-duty dual-way stainless pocket clip so you can quickly anchor it to your shirt pocket or clip it to the brim of a hat to use as an instant headlamp for hands-free tasks.

Dual Charging and Battery Indicators You Can Actually Trust

Nobody wants to guess if their emergency gear is about to die, so Olight built a simple, clear layout into the case. You get separate color-coded LED indicators right on the body. A bright green stack shows you your remaining battery cells, while a white indicator tracks your active brightness intensity.

When it comes to keeping the light fed, you get excellent flexibility with dual charging options. You can snap Olight’s magnetic USB charging cable right onto the bottom base, or just use a standard USB-C cable that you already use for your phone or tablet.

If you run the light on its lowest 1-lumen “Moonlight” setting, a single full charge can deliver up to 14 full days of continuous use. That means you will get way more battery survival life out of this tool during a major storm or unexpected power outage than almost any basic flashlight you have ever owned.

A Magnetic Base That Holds Tenaciously

The hidden superpower of this build sits right in the flat tail-cap. The integrated magnetic base lets you snap the flashlight directly onto metal beams, shelves, fuse boxes, or any steel object. Because the magnet holds so tenaciously, you never have to worry about the light slipping, sliding down, or falling off due to heavy outdoor wind or localized tool vibrations while you work. Combined with a robust build that easily handles rain or wet conditions, it makes for a reliable assistant when you need both hands to handle gear or complete a project.

Disclosure: This product was provided to us so we could review it for this article. No remuneration was involved. Opinions are, always will be, totally our own.

Doug Bardwell bio