SureFire and Haley Strategic Partner teamed up to come up with a light. It gives out 500 lumens using a single cell.
http://soldiersystems.net/2017/11/05/surefire-hsp-collaboration-d3ft-light/
It's named Disruptive Environments Firefly Technique (D3FT), and will be available in Jan. 2018.
From: Soldier Systems Daily