Olight SR51 Intimidator Flashlight is a powerful, multi-purpose flashlight that has been designed from the ground up for intense search and rescue operations. Centered around a virtually indestructible aluminum body with type III hard anodization, which helps prevent scratches, these Olight flashlights use a mini orange peel reflector to launch a 900 lumen beam up to 700 meters in the distance. This high powered intensity makes these flashlights well suited to searching for lost or injured civilians in exceedingly dark and open environments. The super-bright Cree XM-L LED bulb of the O-Light Intimidator Search and Rescue Flashlight can run for up to 10 hours on a CR123A, RCR123A, or 18650 battery. You can easily signal to your companions with the instant strobe access of the Intimidator, which also features two digitally controlled constant brightness levels that can be toggled simply by holding down the power switch. These LED flashlights are also rated with IPX-8 waterproofing, so you don't have to worry about accidental immersion in rugged environments or during a rain storm. Built for search and rescue and equipped for high powered illumination, the O Light SR51 Intimidator 900 Lumen Flash Light will intimidate even the darkest nights.