Suggestions Illuminated wall poster boxes

[2B]

Have a customer looking to get custom sized wall mounted illuminated poster boxes.

Similar to what you see on the exterior building walls of movie theaters.

Sized 48 x 66
Outdoor grade
Lockable
Easy to change out content
Backlit illuminated.

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[studio 440]

Light Box Signs | Edgelit & Backlit Display Panels | Lightbox Displays

 

[TXFB.INS]

we have a customer looking for similar style / usage light box.
are there any other suggestions?

FYI, our customer has requested a custom sized cabinet if that makes a difference