... station,mall,business street,airport and so on.As light box or sign is available.Product specification Frame: ... sticker,2 years span outdoor,3 years span indoor Light source:t8 philip,over 10000h life span/cree ... turn color 2 years span outdoor,3 years span indoor Hook:inner is metal tube,outer decoration is ... closing and protect inside from dust. aluminum outdoor/indoor double sided light box signage