Convoy L21B PM1 Red, 450 Lumens, 750m Range

Note: This torch is self assembled with carefully selected parts for the best performance. In stock form the range will be considerably less. I 3D print my own gaskets to fine-tune the focus for max range.
 
I have replaced the Convoy C8+ Red with this new LED in the L21B. It offers a wider, more useful beam with a nice increase in range.
 
Yet to take night photos.
 
12 Selectable Mode Groups: See my video tutorial in the gallery. 
 
Available modes depending on the selected mode group: (preconfigured to group 10 with 4 levels)
 
Mode • Lumens • Range
 
100% • 450 • 750m
50% • 300 • 625m
35% • 220 • 540m
20% • 130 • 420m
10% • 70 • 305m
1% • 7 • 95m
0.1% • 1 • 35m

Specs:
 
- Lumens: 450
- Range: 750m
- Color: Black
- LED Type: CULPM1 Red
- Wavelength: 620nm
- Material: Aluminum
- Reflector: Smooth
- Lens: AR Coated Glass
- Battery: 1x 21700 3.7v unprotected battery (not included)
  Note: Battery must have a button top if mounted
- Driver: 5A
- Switch Type: Reverse Clicky
- Switch Location: Tail
- Weight: 212g
- Size: 170.5 x 62.6 x 26mm (length x head x body diameter)
 
Even though the L21B is 26mm it'll still fit into the 25.4mm (1 inch) mounts.
 
Runtime is yet to be tested.
 
Package includes:
 
- Convoy L21B PM1 Red
- Wrist Strap
- User Instructions