The suitable technique to make it luminous.
( the black backgound means can luminous at night time time )
1.This backpack desires to take in delicate throughout the daytime and shine at darkish.
2.The longer the backpack absorbs delicate,The longer the backpack in the dark glow time.
3.It’s advisable carry it throughout the photo voltaic for some time.After which stroll to the darkish place.
4.Then it’ll be luminous.
1, 2, 3, 4, 5, 6, 7, 8, B1, B2, B3, B4, B5, B6, B7, B8, C1, C2, C3, C4, C5, C6, C7, C8, D1 glow, D2 glow, D3 glow, D4 glow, E1 glow, E2 glow, E3 glow, E4 glow