Fenix RC40 review: This flashlight is so powerful, it'll even charge your phone
Fenix's RC40 is 50 times brighter than a 4D flashlight and as tough as nails.
- Very bright
- A bit big
- Not the best battery
"Walking between the decrepit airplane hangers, I felt like I had a vehicle-mounted searchlight rather than a flashlight." But who needs this much brightness? It's a small market, hence the high price.
Price$ 590.00 (AUD)
The smartphone may have replaced the flashlight for most consumers, but when you really need to light it up, nothing beats the real thing.
And when it comes to a really good flashlight, it's hard to beat the Fenix RC40. Upgraded this year with the latest Cree XM-L2 U2 LEDs, the RC40 (available for $590 at Brightnite), will put out a scorching 6,000 lumens from its six-LED cluster. That’s enough output to reach almost half a mile away.
Mind you, a typical 4D alkaline Maglite might hit 122 lumens. Using the RC40 at an abandoned military base, I could easily light up the sides of ginormous aircraft hangers.
The battery and the build
With great output, comes great power though. The RC40 eschews alkalines, which could never support its current draw, in favor of what appears to be a custom gigantic lithium-ion cell.
The battery is the approximate size of two-and-a-half D-cells stacked end-to-end. The battery is charged via a standard barrel charger plugged into the end of the flashlight. Fenix includes an AC power brick as well as a cigarette-lighter adapter.
Perhaps even cooler, if you need USB power, there’s a single USB Type A port on the end of the flashlight, so you can use the power bank to charge your phone or other device. I measured output of the USB port to my Galaxy S5 phone at just under 1 amp.
All of the ports have gaskets and Fenix rates the flashlight at IPX-8, saying it can be fully submerged up to two meters underwater.
Besides being submersible, the RC40 is also tough. During a video shoot, I dropped the light—bezel-side down—from about three feet onto solid concrete. The antireflective coated glass lens didn’t shatter and the only damage was a slight deformation of the bezel. Functionality wasn't impacted at all.
The RC40 in action
The RC40 features two buttons for operation. The right button cycles through the power levels: Eco, Low, Medium, High, and Turbo. Eco is 45 lumens for up to 125 hours, low is 500 lumens for up to 18 hours, medium is 2,000 lumens for a little over 4 hours, high hits 4,000 lumens for just under 2 hours, and the turbo mode will hit 6,000 lumens for 1 hour— but don't expect to run the flashlight at 6,000 lumens continously.
To prevent the LEDs from overheating, the light output will drop when the temperature hits 149 degrees Fahrenheit. This is typical in high-performance LED lights, which throttle output to protect the LEDs from damage. For what it’s worth, I ran the light on turbo mode on a cool night and didn’t notice any reduction in output after five minutes. Your mileage will vary depending on the conditions, of course.
The left button lets you activate the strobe, or SOS mode. Pressing both buttons locks the flashlight. If you try to turn on the light while locked, it will blink three times to let you know it’s locked.
Flashlight aficionados will bounce beams on a ceiling to measure relative output, and the RC40 will totally illuminate a small room. Like I said, I took the RC40 to an abandoned military base to creep around and could easily light up whole buildings 1,000 feet away.
The RC40 is what flashlight fans call a “thrower,” meaning its beam profile is better for lighting up objects far away. It’s bright enough to be competitive with less-efficient HID (high-intensity-discharge) flashlights while giving you better battery life.
Walking between the decrepit airplane hangers, I felt like I had a vehicle-mounted searchlight rather than a flashlight. The RC40 was bright enough to attract the attention of the sprawling base's sole security guard and get me kicked out.
You can thank Moore’s Law for that, as the efficiency of LEDs has advanced as quickly as computer processors. Last year’s RC40 could only push its four Cree XM-L U2 LEDs to 3,500 lumens. Without changing the power source, Fenix is now able to push six Cree XM-L2 (note the 2) U2 LEDs to 6,000 lumens.
So what are the negatives? The most obvious one is the power source. I have a large collection of flashlights and most of the higher-performance ones run on lithium-ion, as well. But they use commodity 18650 cells. The large ARB-L3-15600 in the RC40 is far from common. Replacements are about US$65 on the internet and unless other flashlight makers or device makers support the form factor, you better hope Fenix keeps sourcing them for you. Should Fenix stop selling them, that’ll be it for the flashlight once the battery wears out.
The other negative is the bulk. While a 10.7-inch flashlight with a 4.6-inch diameter head would be no big deal in 1994, we’ve come along way in flashlight technology. People are spoiled by the output and size of today’s torches. You can get a pocket light that’s brighter than the heaviest flashlights from the 1990s.
Most people, frankly, just don’t need this kind of output unless they're a cop, on a search-and-rescue team, a night hunter, or, well, a flashlight buff.
That’s a pretty small market, which explains its steep price. That doesn’t take away from the performance of the RC40, though. If you’re looking for the ultimate flashlight, the RC40 should definitely make the short list.
Join the Good Gear Guide newsletter!
Linksys AC5400 MU-MIMO Gigabit router
Samsung portable 1TB T3 drive
Smart LED Bulb LB130
Everki ContemPRO Roll Top Laptop Backpack
Lexar® JumpDrive® S57 USB 3.0 flash drive
Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop
UE Boom 2 Bluetooth speaker
3SIXT Ultra HD Sports Action Camera
Huawei Mate 9
Acer Swift 7
Google Daydream VR headset
Logitech G403 Prodigy mouse
Lexar® Portable SSD
Lexar® JumpDrive® S45 USB 3.0 flash drive
Belkin MIXIT Metallic Lightning to USB Cable
Dell XPS 13 laptop
Surface Pro 4
Blade 28 backpack by Arc’teryx
Lexar® JumpDrive® C20c USB Type-C flash drive
Dell Inspiron 5000 series 2-in-1
Garmin Fenix Chronos smartwatch
HD Pan/Tilt Wi-Fi Camera with Night Vision NC450
Audio-Technica ATH-ANC70 Noise Cancelling Headphones
Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards
HP Pavilion x360 13”
Most Popular Reviews
- 1 Star Wars Death Star Bluetooth levitating rotating speaker review
- 2 Finally! LG OLED TV 2016 range review
- 3 Fetch TV Mighty review: Better than Foxtel
- 4 Fetch TV Mini review: Make your TV a smart TV
- 5 Panasonic Viera DX900U UHD 4K smart TV review
Latest News Articles
- IBM's hub for wearables could have you out of the hospital faster
- HoloLens Spectator View makes it easier to show off AR creations
- Lenovo's ThinkPad P71 will work with HTC, Oculus VR headsets
- Google revamps Voice with long overdue makeover, new features
- Mozilla's new corporate logo evokes URL lingo
PCW Evaluation Team
I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.
Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!
For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.
First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.
For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.
- Horizon Zero Dawn review
- How to quit Pokemon Go (or to start enjoying it again)
- Japan's pop culture, anime-friendly, J-Pop shrine, Kanda Myojin
- Which flagship TV is best? Sony 4K HDR Bravia 2016 versus LG 4K HDR OLED 2016
- 10 Blu-ray movies / Best looking Blu-ray movies
- CCLevel 2 IT Service DeskQLD
- FTSenior C++ EngineerACT
- FTMicrosoft Dynamics AX Technical ArchitectACT
- TPMicrosoft Analyst ProgrammerSA
- CCContract - System Access Administrator - major Telco in MelbourneVIC
- CCSenior Project Manager x 2QLD
- FTSenior Network AdministratorNSW
- TPIT Project Manager - Office relocationVIC
- CCTechnical Business Analyst - Infrastructure - VirtualizationNSW
- FTFull stack Developer - Senior (Java or C# and AngularJS) x 3QLD
- FTSystem AdministratorNSW
- TPFront End DeveloperWA
- CCWicked Front-End DeveloperQLD
- FTSolution Architect l MS Exchange, O365NSW
- TPOrganisational Change ManagerQLD
- CCSalesforce DeveloperNSW
- CCApplication Services Administrator (Linux)NSW
- TPICT Contracts Compliance ManagerWA
- TPBusiness Analyst AO7QLD
- FTJava Developer/IntegratorACT
- TPSAP Helpdesk SupportACT
- FTConsultant Business AnalystQLD
- CCNetwork Specialist - IPAM TelcoVIC
- FTTechnical Consultant MS Dynamics AXWA
- FTApplications DeveloperACT