This glow in the dark exit sign is non-toxic and non-radioactive.We offer our standard 25-year warranty with this photoluminescent exit sign – ensuring you are in the right hands for years to come.This exit sign can only be installed indoors. Exit Sign Luminaires (recessed and surface) Surface, Suspended or Recessed Led Exit Sign 15 x white Leds Sign luminance > 500cd/m2 28m Surface/Suspended.We provide directional arrow labels with each sign for on-site application.Requires exposure to at least 54 lux of fluorescent, metal halide, mercury vapor, or other 4000K light illumination for a minimum of 60 minutes to become fully operational.Ecoglo® photoluminescent exit signs don’t require any electricity, batteries, or external power.(2) of the NBCC mandates that every exit sign shall be illuminated continuously while the building is occupied. Exit signs have to charge under more intense illumination than do egress markers. Our Standard Series features a 50/75-foot visibility rating – ensuring it can be seen from a distance even in emergency conditions. Rules of Section 46 will have to be followed for installation of emergency lighting systems (Rule 46-200) and unit equipment (Rule 46-300), and for wiring methods (Rule 46-108). Section 1025.5 states that photoluminescent exit path markings must be continuously illuminated with at least 1 foot-candle (11 lux) of lighting while the building is occupied, and for 60 minutes before it is occupied.LEED Points qualified for energy conservation and sustainability.Our sign is ULC 924 listed for Photoluminescent and Self-Luminous Exit Signs, so you can rest easy knowing this product will bring your facility up to code.