Photoluminescent Series View Assistance Cornell RADIANCE ARA Signs utilize technology. Photoluminescent materials and store energy from normal ambient light and are to glow in total darkness; it then releases this in the form of light Cornell RADIANCE ARA Signs in compliance to NFPA Life Safety Code 101 and all building codes, ICBO, IBC, BOCA, SBCCI, NFPA Cornell RADIANCE ARA Signs are available in or double sided, with AREA OF RESCUE or AREA OF REFUGE, and come with arrows be applied to the face for a directional sign. Darkness View Cornell RADIANCE ARA Signs utilize photoluminescent technology, which absorb store energy from normal ambient light and are designed to glow in total darkness; it then this energy in the form of light. Mounting Options include Ceiling (top), Wall (flat), Wall (flag). Signs have solid line; are included to be placed when installed for direction if required. Information: Power Requirements: No Electricity to operate Operating Environment: 50 to 120 F Indoor Non-Condensing Physical Dimensions: 9 x 14 Mounting: Ceiling (top), Wall (flat), or Wall (flag) Wiring: None time after fully charged: 60 Minutes of Full Illumination Required for Charge: 54 lux ambient light Time Required for Full Charge: 30 Minutes