The need to end the use of tritium exit sign is apparent, but what would be the alternative? Incandescent lighting also carries with it numerous pitfalls, among them the constant need to replace bulbs, hardware and wiring. They use a lot of power since they must run 24/7, and require either battery or generator backups to ensure that they actually work in an emergency. In the last few yeaqrs only the advent of photoluminescent signs have come through with the usage of 100% and zero energy cost and the life span of 25 years and recyclable also. They are also rated bombproof.
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