FourSevens Mini MK III 900 Lumen RCR123 LED Flashlight MKIII-MINI-BLK

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The new and improved Mini MK III from FourSevens by Prometheus Lights is a powerful, single RCR123*, LED flashlight that just begs to be carried every day. Simple, durable, and easy to carry, this brilliant little light is a fantastic new addition to the FourSevens family.

Brand new and direct from FourSevens.

Operation: A simple twist bezel allows access to the multiple output modes on the Mini MK III with a revamped user interface for better usability and wider appeal to different owners. With six configurations the UI can be as simple as or as complex as you like. The modes range from a single max output to having all six distinct modes at the ready.

Body: Made from solid 6061-T6 aluminum with Type-III hard anodizing the Mini MK III is tough while maintaining a very light weight. The dual, anti-reflective coated Optical-grade glass lens is paired with the CREE XM-L2 LED to provides enhanced directional illumination and clean, even, 4500K / 75+CRI output. An all new magnetic tailcap makes it compatible with the upcoming 360 Headlamp with a non-magnetic "dummy" insert and a keychain attachment planned for the future. Carries via an improved stainless steel pocket clip for lens down carry.

*NOTE: You must use a Foursevens branded RCR123 High Discharge battery for effective and safe operation of the light.

Output and Runtimes (RCR123 Battery):

  • MAX/BURST: 900 lumens - 50 min
  • HIGH: 350 lumens - 60 min
  • MEDIUM: 45 lumens - 9 hours
  • LOW (MOONLIGHT): 1.5 lumens - 90 hours
  • STROBE: 850 Lumens @ 20Hz
  • SOS - International Distress Signal
  • BEACON - 2 blinks every 5 seconds

Configurable User Interfaces:

  • Config. 1: High + Burst
  • Config. 2: Max - Strobe
  • Config. 3: Medium - High + Burst
  • Config. 4: Low - Med - High + Burst
  • Config. 5: High - Med - Low + Burst
  • Config. 6: Low - Med - High - Strobe - SOS - Beacon + Burst


  • Clip, Spare O-Rings, 1 X RCR123 Battery and Instructions


Length 2.17“
Body Diameter 0.79“
Bezel Diameter 0.79“
Body Material Aluminum
LED Cree XM-L2
Max Output 900 lumens
Beam Distance 393 feet
Impact Resistance 1 meters
Weight 1.60 oz.
Country of Origin China