Have you wonder how bright is glow in the dark pigments and what unit to measure the brightness? Glow in the dark measured in millicandelas (mcd).
1 lumen is roughly equal to 1 candlepower - with a notable
1 candella (candlepower) or cd is a brightness, measured at an
angle, and a distance from a light source. For example, a 1000mcd (1 cd) led
will be 1000 mcd at zero degrees
1 lumen is an amount of light - total - which includes all
light in the entire area illuminated by the source.
Am Here brightest glow in the dark pigment measures 910 mcd/㎡ with standard testing D65 after 10 mins and stay glowing 140 mcd/㎡ after 60min! This is our new Hybrid Super Glow Powder series with particle size of 0.15-0.3 um.
We also have glow in the dark sand pigment (particle size 0.5-2um) with measurement 1050 mcd/㎡ after 10 mins and 145 mcd/㎡. Believe us Hybrid Glow Powder is SUPER BRIGHT!