View research below focused on brightness, energy efficiency, engineering, and conspicuity of illuminated signage.

Finding Common Ground: EMC and Digital Sign Issues
Illuminated vs. Non-Illuminated Signage – Economic Impact of Illumination
Night-time Brightness Level Recommendations for On-Premise Electronic Message Centers (EMCs)
Night-time Brightness Level Recommendations for On-Premise Electronic Message Centers (EMCs) – Executive Summary
On-Premise Sign Research Review