How bright are glow in the dark products like glow paint and glow powder?
These are some of the common questions we face. Brightness of any product, whether it is glow powder, a light stick, or even a light diode is measured in mcd/m2. However, using this to rate the brightness of glow powder is a little misleading because the brightness of glow powder can descend quite quickly as shown in the graph below. Instead of mcd/m2, we prefer to state the number of hours our products can glow as that is more practical when dealing with glow in the dark products and it is also easily understood among our customers.