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The 4 LEDs sit behind a TIR lens and the beam is floody, but with the huge amount of output the throw is still 209 metres with an intensity of 10900 candela. Although this is still less than the Fenix PD25R with only 800 lumens of output – which it can also hold for a lot longer. It really does depend on what you want. It’s not possible to measure amps on this light as it requires the body to be disconnected from the head to access the battery. To obtain these numbers, I used a very rudimentary integrated shoebox and ceilingbounce on my Samsung Galaxy S10. Ceilingbounce has been calibrated using a standardized calibration light provided by 1Lumen.
The charging light turns from red to green when it’s fully charged. You can use the moonlight, low and medium modes whilst it’s charging. Turbo lasts just under a minute while high takes almost three and a half minutes to step down, but they both converge at the medium level, and all three modes stay there for almost 5 hours. Really, aside from the short burst at the beginning, this is a ~300 lumen light. It would’ve been nice to see it sustain high for a bit longer than that. Mode Memory: memorizes the last brightness level used in the general modes (except Moon, Turbo and Strobe)The other accessory it comes with is a lanyard, but the only place to attach it is onto the end of the clip, which is closer to the head than it is to the tail. This sort of makes sense, as it allows you to rotate the light between standard and overhand grips, but it doesn’t really allow for the cigar hold, and you wouldn’t want it dangling by this.
The LEDs behind the TIR optic provide a very floody beam with almost no hotspot – together with the natural colour temperature it’s a great torch for walks. With a slightly lower maximum output than spec’d I measured 116 metres of throw and 3383 candela – Acebeam quote 153 metres of throw and 5875 candela. Advanced Temperature Regulation (ATR) technology: ATR will adjust the brightness level automatically when the driver temperature reaches a relatively high temperature to prevent overheating. Chế độ Turbo: 2 giờ 2 phút. Sáng mạnh ở chưa đến 5 phút đầu, nhiệt cao. Sau đó duy trì độ sáng tương đương Chế độ sáng Cao. Nhiệt độ khá cao, cầm có thể gây phỏng, không thể cầm bằng tay không được. const searchEmpty = ("Your search for \"{test}\" did not yield any results.").replace('{test}', data); The numbers for candela were obtained with a UNI-T UT383S luxmeter at 5 and 15 meters, then averaged. ModeThere’s only one version of the Sofirn SC18 flashlight but it’s available with or without the 18650 seen in this review. Price I’d really like to see a 1 hour 400-500 lumen high mode to make it a more versatile torch that I might grab for my morning walk. In some ways it is best suited as a keyring torch, if you’re ok with the bulk, and it’ll certainly impress your friends! Sofirn SC31 Pro
A rubber flap covers the USB-C charging port and it charges the supplied battery in around 80 minutes. All my top ten torches that have USB-C charging charge with both a USB-C to USB-A and USB-C to USB-C cable so I won’t specifically mention this from now on. There’s also a status LED above the USB-C charging port of the case, that indicates the case’s battery level when you open the case and also turns green when the case is fully charged. You can use the supplied charging cable or a USB-C to USB-C charging cable. The torch has a small OLED screen for real-time display of lumens and runtime. Below the screen are the power and mode buttons. For some reason it arrives in demo mode. Press and hold the power and mode buttons to switch to daily mode.I measured 4180K for the LEDs with a pretty neutral tint and a very high 95 CRI. They’re behind a TIR or Total Internal Reflection lens and I measured a throw of 104m with a beam intensity of 2700 candela. It’s less than what’s quoted in the manual but still a useful throw for a small torch like this. Again if you’re unfamiliar with any of these terms, I explain them in detail in my previous video.
The lower modes are very well regulated with constant outputs, although I did find outputs a little lower than spec’d. Like the Nitecore T4K there’s no mention of the ANSI standard in the manual or online, but even so I didn’t see 2000 lumens in any of my tests even at turn on. if ((defaultSelectedVariant && !defaultSelectedVariant.available) The torch I always have on me whatever, is still the RovyVon Aurora A8 I looked at in the keychain torch roundup. Small sample of headtorches I’m testing, ready for next article … Also included on the Sofirn SC21 flashlight is a couple of lanyard hole attachment points. These are interesting because they feature a gap to allow tailstanding while the lanyard is installed. But what you lose in output you make up for in the light quality. I measured a warm 4243K colour temperature, with barely any tint and a high CRI of 95 and an equally impressive R9 of 91.
Chế độ Vừa: 350 lumen. Sáng ổn định, thay đổi nhẹ khó nhận ra trong suốt thời gian sáng đến khi tắt. With the deeper smooth deflector the SC31 Pro has a decent throw. I measured 190 metres with an intensity of 9060 candela. That’s pretty close to what Sofirn lists as 10,000 candela and there’s still useful spill for seeing what’s right in front of you too. The Wurkkos WK03 is a low-cost 18650-based flashlight that offers USB-C charging and a nice range of output! It makes a great gift! Olight doesn’t specify the LED used but it sits behind a TIR optic and the beam has a good mixture of throw and spill for an EDC torch. There’s a noticeable hotspot with 220 metres of throw and 12300 candela of intensity in turbo mode.
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