The Lancer Tactical MS2000 Distress Marker Light is a very close replica of the MS-2000 Military Distress Marker used in Combat Search and Rescue missions. Included is a light strobe capable of 250,000 peak lumen output per flash, which is rated at about 50 flashes a minute. The light that disperses from the marker is omni-directional, and is capable of white & blue light. This model also comes with an IR filter, and is velcro backed for easily attaching to a helmet. This unit is powered by 2x AA batteries, which are easy to find and easy to replace. This replica will take your MILSIM experience to a whole new level by not only adding form, but function to your load out.