Simple question: how do you use them?
I mean, do you carry a flashlight with you and light up the disc with it occasionally to keep it glowing?
And how well does it show when it's almost perfectly dark?
This has been possibly asked before, but impossible to find, sorry.
I mean, do you carry a flashlight with you and light up the disc with it occasionally to keep it glowing?
And how well does it show when it's almost perfectly dark?
This has been possibly asked before, but impossible to find, sorry.