Non-Electric Exit Signs
Power Free Exit Signs are wireless signs that require no electricity (AC) or battery power to work. They are illuminated via either photoluminescence ("glow-in-the-dark") or radioluminescence (low level nuclear decay). Since wireless exit signs don't connect to a buildings AC power, installation is incredibly simple and does not require access to conduit, outlet, or the services of an electrician which translates to minimal installation costs. Since no power is required, there is zero lifetime power consumption cost! With no electronics or batteries, these signs also enjoy zero lifetime mainenance costs!