This Pelican 9430 R.A.L.S. Spotlight (Black) is a stand-alone head, mast and battery system (Remote Area Lighting System) that is an ideal portable light for fire, rescue, emergency, and military applications. The 9430 consists of a power unit with spot LED head on an extendible (up to 32.28" (82 cm) mast. Operation and setup is fast and very intuitive. The head and mast fold neatly into the battery base, minimizing space concerns.