Sofirn SC31 Pro Review — 2000 Lumens for $26 Is as Crazy as It Sounds
There’s a moment with every Sofirn SC31 Pro where you think: how did they make this for $26?
You click the tail switch, double-tap for turbo, and suddenly your entire backyard looks like a movie set. Two thousand lumens from a light the size of a marker pen. A few years ago you’d pay $100+ for this kind of output.
But numbers only tell half the story. Let’s actually talk about what this light is like to use.
The Specs That Matter
| Feature | Spec |
|---|---|
| Max Output | 2,000 lumens |
| LED | Luminus SST40 (6500K cool white) |
| Battery | 18650 (included, 3000mAh) |
| Charging | USB-C onboard |
| UI | Anduril (full version) |
| Waterproof | IP67 |
| Beam Distance | ~230 meters |
| Weight | ~80g without battery |
At $26 on Amazon (price varies a bit), the SC31 Pro includes the battery and has USB-C charging built in. You don’t need to buy anything extra to start using it.
The Bright Part: What’s Actually Good
That Turbo Mode Is Addictive
2000 lumens in a pocket light is genuinely fun. You’ll find yourself stepping outside at night just to blast turbo and watch the neighbors’ houses light up. The beam profile is a good balance — tight enough hotspot to reach out 200+ meters, but enough spill to see what’s around you.
Anduril Actually Makes Sense Here
Anduril is the open-source firmware that gives you ridiculous levels of control. Click for on/off. Hold to ramp brightness up or down. Double-click for turbo. Triple-click for strobe. And then there’s the hidden stuff: battery voltage check (click 3 times from off), sunset timer, candle mode, lightning storm mode.
The candle mode flickers the LED randomly to mimic a candle. It’s completely unnecessary and completely delightful.
USB-C Charging Just Works
The USB-C port is hidden under a rubber flap on the head. Plug it in, a small LED turns red while charging and green when done. No external charger needed. The included 3000mAh battery takes about 3 hours to charge fully.
The Honest Part: What’s Not So Good
That Tint Though
The SST40 LED at 6500K has a cool white tint with a hint of green at lower brightness levels. If you’re coming from a hardware store flashlight, you won’t notice. If you’ve used a Nichia 519A (like the one in the Wurkkos FC11C), you’ll see it immediately.
Is it a dealbreaker? For everyday use — no. For color-critical tasks — yes. Don’t use this to identify wire colors in your breaker panel.
Output Drops as the Battery Drains
The SC31 Pro uses a FET driver, which is less efficient than the buck drivers in more expensive lights. As your battery voltage drops, so does your max output. Fully charged, you get the full 2000 lumens. At 50% battery, turbo is closer to 1200 lumens. At 20%, you’re running maybe 600 lumens max.
This is normal for budget lights. Just know that “2000 lumens” is a fully-charged-battery number, not an all-the-time number.
The Button Could Be Better
The side switch works fine, but finding it in the dark by feel alone is tricky. There’s no texture or notch to help your thumb locate it. And the rubber cover feels a bit soft — I’d worry about long-term durability if you’re rough on your gear.
The “Turbo Stepdown” Dance
On turbo, the SC31 Pro generates serious heat. After about 45-60 seconds, thermal regulation kicks in and drops output significantly to prevent overheating. This is expected behavior — all high-output flashlights do this — but it’s worth knowing: those 2000 lumens are for short bursts, not continuous use.
Who Should Buy This
Get the SC31 Pro if:
- You want the absolute brightest light for your dollar
- You think Anduril sounds fun, not scary
- You’re okay with a cool white tint
- You want USB-C charging and a battery included
Skip it if:
- You care about light quality (CRI) more than raw output — go for the Wurkkos FC11C instead
- You want a simple one-button interface — Anduril can be overwhelming
- You need consistent output at all battery levels — look for something with a buck driver
The Bottom Line
The Sofirn SC31 Pro is a ridiculous amount of flashlight for $26. The turbo mode is genuinely impressive, Anduril is a joy once you learn it, and having USB-C charging with a battery included means no hidden costs.
The SST40’s greenish tint and the FET driver’s output sag are real tradeoffs — but at this price, they’re tradeoffs worth making for most people.
If you want one budget light that makes you grin every time you turn it on, get this. If you want the most practical budget light, get the FC11C instead. Either way, you’re paying less than $30 for something that outperforms $60 lights from five years ago.
Disclosure: As an Amazon Associate I earn from qualifying purchases.