Hvor lang tid tager det for diamanterne at gløde efter eksponering for lys?
How long does it take for the diamonds to glow after exposure to light?
Diamanterne, der lyser i mørket, har brug for omkring 10-15 minutters lyseksponering for at gløde i flere timer i mørke.
The glow-in-the-dark diamonds need about 10-15 minutes of light exposure to glow for several hours in the dark.