2015 Vers. 820 Lumens Olight M20SX Javelot 404 Yards Long Throwing LED Tactical Flashlight with Diffuser, Premium Holster, two CR123A Batteries and a LumenTac(TM) Battery Organizer New 2015 Version M20SX 850 Lumens, Upgrade for all previous M20S Three Brightness Levels from 25 to 820 Lumens, plus a strobe mode Multi-function clicky tail switch with momentary activation and on/ff, quick access to the brightest level and strobe Side switch to select modes with memory function to remember the last power setting used Package also include a premium LumenTac(TM) battery organizer for Backup batteries (Capacity: 4xCR123A, 2x18650)