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FAQ
FAQ CENTER
Q
How long can it keep glowing each time?
A
After illuminating for 10 hours, the afterglow intensity is ≥
12 MCD/M
²
, it
’
s bright enough for human to see.
Q
How long can it work?
A
It works for all the time unless it is destroyed by human, but it will still work even if it was broken into pieces.
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