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Image 1 — (NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)
Image 2 — (NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)
Image 3 — (NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)
Image 4 — (NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)
Image 5 — (NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)
Image 6 — (NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)
Image 7 — (NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)
▲ 46 r/flashlight

(NED) Convoy L21A with SBT90.2 Red Emitter (3V 20A Driver & SMO Reflector)

🛠️ Test Equipment & Camera Settings

  • Equipment Note: I am unable to provide my usual output, runtime, or tint charts for this light. Because of the pure monochrome red wavelength of the SBT90.2 Red emitter, my testing equipment cannot accurately capture or read the measurements correctly. This post focuses purely on beamshots!
  • Beamshot Camera Settings (Samsung Galaxy S22 Ultra Pro Mode)
    • ISO: 800
    • Focal Length: 23mm
    • Exposure Compensation: -1.0ev
    • Aperture: F1.8
    • Shutter Speed: 1/4 s
    • White Balance: Locked at 5000K
u/MetaUndead — 18 hours ago
▲ 26 r/flashlight

[Review] Fireflies E04 Surge Ti-Al Limited (Lume X1 Boost + Quad B35AM 4500K): 30min Runtimes, Beamshots, and Angie-M vs. Angie-S Range Performance Measurements

Fireflies E04 Surge: Comprehensive Data, Measurements, & Observations

It finally arrived! I am incredibly pleasantly surprised by both its output and the overall fit and finish. I’ve built myself a couple of single-emitter lights with the B35AM before, but they are nowhere near the power that this quad-emitter E04 can pump out.

While it doesn't have the highest sustained output out there, compared to my other two lights, it actually sustains just as well as my L21A with the B35AM, which I only get about 650 lumens out of continuously.

🛠️ Test Equipment & Camera Settings

  • Lumens & Runtimes: Tklamp TK2303D Flashlight Tester
  • CCT / Tint / DUV / Ra: Hopoocolor HPCS330P
  • Lux Measurements: Uni-T UT383
  • Beamshot Camera Settings (Samsung Galaxy S22 Ultra Pro Mode):
    • ISO: 800
    • Focal Length: 23mm
    • Exposure Compensation: -1.0ev
    • Aperture: F1.8
    • Shutter Speed: 1/4 s
    • White Balance: Locked at 5000K

https://preview.redd.it/kioiflubbk2h1.jpg?width=2160&format=pjpg&auto=webp&s=038f470aaacbc2b421b8c3bf978b2ed878799c67

https://preview.redd.it/f1eai4p7ak2h1.jpg?width=3000&format=pjpg&auto=webp&s=824d276d2ee85d5f6c9b3ac522d6e7bd81edc55b

https://preview.redd.it/3zw4h6r8ak2h1.jpg?width=3000&format=pjpg&auto=webp&s=b80877b151af4bda77e770fc673568cf184c0249

https://preview.redd.it/pq93ari9ak2h1.jpg?width=2460&format=pjpg&auto=webp&s=10230994f801e916030c82b9ad65caf143a1598f

https://preview.redd.it/s96tch2aak2h1.jpg?width=2460&format=pjpg&auto=webp&s=37dd53e6a5c738bc5be9df8a8af8b1168eb9983d

📊 Output, Tint, & ANSI Throw Measurements

Note: Raw lux measurements were taken at 5 meters and converted to Candela ($cd = lx \times 25$). ANSI Throw distance is calculated down to 0.25 lux. Moonlight mode is omitted as it is too low to accurately read.

Output Level Lumens CCT (K) DUV Ra (CRI) Angie-M Intensity Angie-M ANSI Range Angie-S Intensity Angie-S ANSI Range
Lvl 1 / 5 5 lm 4548K -0.0015 97 — — — —
Lvl 2 / 5 60 lm 4563K -0.0024 97 425 cd 41 meters — —
Lvl 3 / 5 280 lm 4585K -0.0027 97 1,325 cd 73 meters — —
Lvl 4 / 5 790 lm 4612K -0.0032 97 3,450 cd 117 meters — —
Lvl 5 / 5 1790 lm 4656K -0.0044 97 7,625 cd 175 meters 13,850 cd 235 meters
Turbo 3350 lm 4711K -0.0065 97 13,900 cd 236 meters 16,675 cd 258 meters
  • Level 5/5 Data: The Angie-M hits 7,625 cd (175m throw). The Angie-S hits 13,850 cd (235m throw).
  • Turbo Data: The Angie-M hits 13,900 cd (236m throw). The Angie-S hits 16,675 cd (258m throw).
  • Beam Profile Note: Because the B35AM has a large emitting surface area, the numbers look low on paper for 3300+ lumens. It creates a massive, thick wall of light rather than a tight pencil beam.

📈 Runtime & Thermal Regulation

(Refer to the graph uploaded in the gallery)

Test Parameters: 30-minute logging | Ambient Temp: 25°C | Battery: Reliance RS50 4.2V

  • Turbo Curve: Starts at ~3400 lumens. Passes 2500 lumens at the 1-minute mark, hits a knee at 1:45, and drops near 1000 lumens by minute 4.
  • High (Level 5) Curve: Starts at ~1800 lumens and has a slower, controlled decline over the first 4 minutes.
  • The Cross-Over: Between the 2-minute and 6-minute marks, High mode maintains a higher lumen output than Turbo due to the aggressive thermal stepdown on Turbo.
  • Sustained Output: After 7 minutes, both modes merge. Turbo sustains ~780 lumens and High sustains ~750 lumens.
  • Thermals: Hit a peak max temperature of 62°C before holding a steady 60°C for the rest of the 30-minute test.

https://preview.redd.it/179brdjrhj2h1.png?width=1920&format=png&auto=webp&s=5f30c1c3b13067a15bdd68287ccb8e6695f790b7

💭 Quick Impressions & Optic Comparisons

  • Optic Selection & Tint: I tested it out with both the Angie-M and Angie-S optics, and these B35AM emitters definitely pair best with the floodier Angie-M. With the tighter Angie-S, you get a pretty ugly yellowish tint right in the middle of the hotspot. The Angie-M doesn't have that issue at all, it just creates one large, completely even hotspot.
  • The Nichia Tint: Clean neutral white at lower levels. On Level 5 and Turbo, the DUV drops beautifully into the negatives (-0.0044 to -0.0065), creating a very nice premium rosy tint with a high Ra 97 CRI.
  • Driver Performance: Loneoceans' 40W constant-current boost driver provides flat sustained performance with zero PWM flickering.
  • Host Fit & Finish: I’m really satisfied with the finish they went with, it looks fantastic! Like others have mentioned, it does feel a bit less durable than standard anodization, but because of the specific glossy, almost Chameleon color of the light, I don't think scratches will show up very easily anyway.
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u/MetaUndead — 1 day ago
▲ 82 r/flashlight

(NLD) Convoy 3x21C (7x LHP531 5000K) - 30,500 Lumens of Rosy Goodness! Measurements 👇 - Beamshot comparisons 🔦🫘

I recently sold one of my Wurkkos FC11C lights and my only TS28 to my neighbor. He takes long evening walks with his dog and has become very interested in high-quality flashlights after realizing how much better they are than the cheap stuff from the local grocer.

​

While he’s incredibly happy with both lights, he asked me the other day if I could find him something with even more power. I briefly considered selling him my Acebeam X75 (BP8), but as I expected, he found it too bulky for his walks, even though he was blown away by a quick demonstration of its power before it was even fully dark.

​

I started looking for something jacket-pocketable that didn't compromise on performance, and the 3x21C quickly became the clear winner. I received it today and asked if I could run some tests before handing it over to him; he was happy to let me "benchmark" it first.

​I have to say, for its size, this is the most impressive light I’ve ever used. The power is staggering, not just on the 54A FET Turbo, but also on the 25A High mode, which sustains far longer than I anticipated. I’ve already warned him that the FET Turbo is short-lived, but since he rarely uses Turbo for more than 10 seconds at a time on his other lights, heat management won't be an issue for his needs.

I am genuinely surprised by how compact it actually is. I think I’ll end up buying one for myself, simply because it actually fits in a jacket pocket, unlike my other high-power lights.

Beyond the size, the tint from the LHP531 is just fantastic, most high-power lights usually have a very high positive DUV to achieve max output, but this looks incredible.

I can't wait to hear what he says after using it for the first time, he’s definitely in for a massive surprise 😆.

I try as much as possible to keep the camera settings the same for all my beamshots, so with the more powerful lights, there is a bit of overexposure right in front of me.

u/MetaUndead — 11 days ago
▲ 52 r/flashlight

Convoy L21A SMO (NV1010 + 20A Buck) - Beamshot Comparisons & Measurements👇🔦🫘

I just received some stuff from Convoy, including four NV1010 emitters, and decided to swap one into my L21A. I had to modify a 13mm SBT90.2 gasket to get the reflector to sit flush, but the result was worth it.

​The beam profile is very similar to an LHP73B in an SMO reflector, but with a massive hotspot and significantly more power, even with a sub-optimal 20A driver. I’m pretty sure the NV1010 can handle way more current than this driver provides, but it's all I have for testing right now.

u/MetaUndead — 14 days ago
▲ 77 r/flashlight

I finally got my hands on some of the new updated EVE 50PL 125A batteries from nkon.nl.

​They’re supposed to have fixed the parasitic drain issues that plagued the first batches, so I’ll be testing that over the coming months. Hopefully they god rid of the issue.

u/MetaUndead — 17 days ago