Specs:

  • LED: GT-FC40 4000-4500K
  • Battery: 1x 21700 (not included)
  • Driver: Convoy 12v 2.5amp boost driver
  • UI: Side switch 4 Modes with moonlight mode
  • Reflector Type: OP
  • Thermal Regulation: Throttles to ~900L (High is ~838L)

First impressions:
Same head as the M21G but with a short tube. Sleek and sturdy with a relativley big head. Not very balanced lol. Another 4000k GT-FC40 light, so quality of light is amazing!

Build:
Ditto what I said for the M21G. One difference though is the drivers side battery terminal is a brass post instead of a spring, which can cause problems with flickering when jolting the flashlight around.

Long Term Usage notes:
My one gripe with this light is how the brass post instead of a spring affects d regular use with this light. Any time you set this light down on its tail, or while jolting it, the battery gets disconnected for a fraction of a second, which causes a flicker in the light that is produced. Its not a constant flicker at all, it only happens when being jolted, when the battery is "jumping around" inside. This wouldn't happen if there was a spring instead of a brass post, or if there was a much stiffer tail spring. Brass posts have an advantage of being able to provide lower resistance to a circut, but this isn't a "hot rod", it doesn't need a brass post. I might get around to replacing it with a spring one of these days, but all else said, this is a great light to use. I don't have to worry about it running too hot as it can hold High brightness indefinitley with much lower temps (around 120f) than the M21G (134f-145+)

Battery:
For this light, I use 2 P42A 21700 cells.

Brightness Perf:

  • Low: 20
  • Med: 281
  • High: 838
  • Turbo: 2671
  • Max Lumens @30s: 2574
  • Max Sustained Lumens: 921

Verdict:
For the cost, this is an amazing light in every way. Great build quality, great runtime, great quality of light, useable throw, great brightness. The only thing it isn't good at is thermal throttling itself (which will be less of a problem in actual use while holding it since hands help dissapate heat), and efficiency, the GT-FC40 isn't known for its remarkable efficiency, which is the case with all high CRI lights.

Pros:

  • Great build quality/fit and finish.
  • Great brightness
  • No tint shift
  • High CRI
  • Good Thermal regulation

Cons:

  • Not very well balanced in the hand
  • Not very efficient (All high CRI lights aren't that efficient, but it shows more in high lumen lights where heat can be a problem)

FC11 Turbo vs M21D (Moon)
FC11 Turbo vs M21D (Low)
FC11 Turbo vs M21D (Med)
FC11 Turbo vs M21D (High)
FC11 Turbo vs M21D (Turbo)

This item was purchased by myself