Product Review

Specifications: 

LED: CREE XHP 70B with a lifespan of 20+ years of run time. 
Runs on: 4 x IMR 18650 (ThruNite 18650 3100Mah). 
Reflector: Orange peel reflector.
Working Voltage: 10.5-17.5V
Output mode/Runtime*: 

Turbo (11000 lumen; 85 minutes)
Infinity High (8000 lumen; 90 minutes)
Infinity Low (96 lumen; 2.6 days)
Firefly (3 lumen; 28 days)
Strobe (8000 lumen; 90 minutes)

Peak Beam Intensity: 31140cd. 
Max beam distance: 353m.
Impact resistant: 2 meters. 
Waterproof to IPX-8 Standard (2 meters). 
Weight: 427g without battery. 
Dimensions: 133mm in length x 64mm in diameter x 52mm tailcap diameter.
Accessories: Holster x1, Spare O-rings x2, Lanyard x1, Spare Side Switch Cap x1, Battery carrier x1(inside the light).

Operation

Turn ON/OFF
Single click the switch to turn the light on and off. 
Long press the switch to get firefly mode.
Double click the switch the get turbo mode.

Change Modes
With the light turns on, long press the switch to circle through infinity high and infinity low.
Double click from any mode to turbo, another double click to get strobe.

Memory Function
The light will turn on in the last mode accessed, except for firefly, turbo and strobe.

ITC Technology
The light will automatically lower the current when temperature in LED or driver rises to 80 degrees centigrade to protect the flashlight from overheating. Thus to extend its lifespan.

Low Voltage Indication
When the indicating light on the switch turns from blue to red, it means the batteries should be replaced or charged.