... equipment such as aluminium profile light box,showcase,sign panel,display rack,booth and so on. We are ... Screen(Sticker): light-proof sticker,2 years span outdoor,3 years span indoor Light source:t8 philip, ... sign screen Front panel:pc board,hard to be broken,turn color 2 years span outdoor,3 years ... when closing and protect inside from dust. outdoor/indoor directional signage for metro,airport, bus stop