Here is a luminescent grit tape that is ideal for the Eskom power outages – an anti slip tape so you can see the stair edge when the lights go out or fail due to load-shedding.
Luminous Safety Tape (Glow-in-the-dark)
This anti-slip luminescent tape comes in 50mm x 10m rolls and absorbs light during the day or while the lights are on. When the power turns off or fails, the initial glow is quite bright and then gradually fades over an eight to eleven hour time span.
As you can guess, this would be an advantage for emergency exits and “way finding”!