A standard printed display and an LED light box show the same graphic. The difference is what happens in a dim room or after dark. The standard print fades into the background. The light box stays vivid and draws attention regardless of the ambient lighting in the space.
That sounds like an obvious advantage, and in many contexts it is. But LED light boxes cost more upfront than standard printed displays, and the question of whether the extra investment is justified depends heavily on where the display is going and what it needs to do.