The SE series offers bright and even LED illumination in an attractive die-cast aluminum housing. features include UL listing for 2 hr run time AC or emergency operation with optional Spectron® self-test/self-diagnostic circuitry. special Wording (SW) option also allows for customization of the stencil field to convey important information. housing designed for quick and easy installation with low energy consumption. damp location listed. includes a vandal/tamper resistant (VTR) option. the VTR option includes a polycarbonate face shield and tamper resistant screws.