4 Foot 17 Watt LED Emergency Battery Backup T8 Tube Light (2 Pack)**Comes in a pack of two tube lights** A commercial building's emergency and exit light requirements mandate active lights in egress exit routes. We offer a wide range of hard wired and or battery backup emergency lighting that includes LED emergency lights, LED emergency exit signs, LED emergency light combos, LED emergency tube lights and LED emergency retrofit kits, drivers and inverters to meet your needs. Emergency light fixtures automatically