Ideal for New York applications where steel exits with 8" letter height and emergency lighting are required.&nbsp;&nbsp;<br>20-gauge steel housing.&nbsp;<br>Dual-voltage input capacity (120/277V).<br>The typical life of the LED exit sign is 10 years.&nbsp;<br>Sealed, maintenance-free lead calcium battery delivers 90 minutes capacity to lamp.&nbsp;<br>Back mounting with universal chevron knock-outs.