Nitecore SRT7GT 1000 Lumens Built in Red, Green, Blue, UV Lights, Red-Blue Strobe, Variable brightness XP-L HI V3 LED Flashlight/searchlight with 2 X EdisonBright CR123A Batteries 1000 lumens max output with 1500ft beam using CREE LED Infinite variable and 3 static brightness modes, the SRT7GT is stocked with 4 secondary color LEDs (Red, Blue, Green, & Ultraviolet). This allows for a trio of special outputs, such as strobe, beacon, and a Red/Blue police warning signal. The Red & Green LEDs are great for hunting and night-vision, while Blue helps with blood tracking, & the UV is a necessity for security and fraud detection/prevention. Smart Ring Technology gives users control of infinite brightness from 0.5 to 1000 lumens and access to different outputs with a twist of a dial. The selector ring features an enhanced grip texture particularly useful when operating with gloves on.Nitecores Third Generation patented Smart Ring Technology gives users control of infinite brightness from 0.5 to 1000 lumens and access to different outputs with a twist of a dial. The selector ring features an enha LED power indicator located on side of head Bundle Included 2 x EdisonBright CR123A Lithium batteries and BBX3 battery carry case