This item just popped up at my local Wally World so I grabbed a roll. However when I got it home and did some subjective comparison tests with this tape and other GITD materials using a blu-ray pointer as an excitation source, I was disappointed by how dim the duct tape was. Apparently it's not easy to impregnate a fibrous substrate like duct tape with a decent amount of phosphor.
The tape goes by the name "Firefly." Save your money IMO.