The PowerFlare Infrared (IR) Tactical Safety Light is about the size of a hockey puck and has an array of 16 ultra-bright LEDs with multiple switchable flash-patterns. It is ideal for illumination and signaling for numerous homeland security and SWAT applications, including marking personnel, surveillance, helicopter landing zones, diving (rated to 300 feet under water), bomb squad/EOD and hazmat. The version pictured emits in infrared -- only visible with night vision (NVG) systems for covert operations. Visible colors (red, yellow, white, blue, green) are also available.