The Ready-Lite RAC Series combination emergency light battery unit and the pictogram Exit Signs are suitable for universal mounting: wall, end, or ceiling. The unit includes a power pack made of steel and a legend housing including a one-piece extruded aluminum frame. The legend housing has a maximum depth of 2-1/2". The face plate(s) are made of extruded aluminum and incorporate a protective clear polycarbonate panel. Each face plate comes standard with two legend films for pictogram and direction selection. The light source is white light-emitting diodes (LED), and provides even illumination in normal and emergency operation. The power pack is a complete unit with battery charger and rechargeable battery. The battery is a maintenance-free, sealed Lead-Calcium. In case of AC power failure the equipment provides a minimum 30 minutes of emergency lighting.