LED light boxes — slim backlit frames for menus, posters and shopfront signs, lit edge to edge so the print stays readable after dark.
Most take a standard poster size, and the frame is quoted by that size rather than by the box. Tell us the format you print and we will match the frame.
Bright enough to read at night and in a lit interior. They are not sunlight-readable the way an LED screen is — a box lit from behind competes with daylight, it does not beat it.
They can be. LED edge lighting draws little power and is rated for continuous use; outdoor units are usually switched with the shopfront lighting.