BETALUX - Self-Luminous Exit Signs from SRB Technologies       No Power, No Batteries, No Wires, No Maintenance Frame made of Flame Retardant ABS UL Listed to UL924 Meets NFPA Life Safety Code 101 Available in 10, 15 and 20 Year Life Length - 12.83"  x  Height - 8.35"  x  Depth - 0.93"