GLOW IN DARK TAPE PER METERIn the event of a power failure or power outage, these Glow in Dark Tapes are immediately visible, thereby providing people with a clearly illuminated exit route. Glow in Dark Tape from Pedder Johnson. In the event of a power failure or power outage, these Glow in Dark Tapes is immediately visible, thereby providing people with a clearly illuminated exit route. Installation is a very simple process. Just peel off the back of the tape, and apply to the