Firefly Bivvy Marker Firefly Bivvy Markers allow tent and bag zips to be marked so they can be seen, located and operated by the occupants in darkness, enabling immediate action without using electric torches or 'cyalume' chemical light sources. Visible from distances of up to 10mtr in darkness with the naked eye, nine visible colour options are available so that identities and functions can be differentiated by colour. Bivvy Markers utilise a compact, stainless steel split-ring to provide quick and easy fixing to items of equipment. Each Bivvy Marker incorporates a 1.5x6mm trigalight® housed within a tough, clear polycarbonate enclosure. Also suitable for covert, general marking applications, the Bivvy Marker's limited light output offers a restricted viewing distance. Simple, reliable and very effective, operational efficiency and safety are enhanced in darkness. Simple, reliable and very effective, operational efficiency and safety are enhanced in darkness.
