Tunnel lighting is vital for road safety and tunnel design. Its primary objective is to provide enough light to enable drivers to see everything necessary during their journey, regardless of day or night time.

Rayon Progressive Lighting offers highly professional lighting solutions that are innovative, energy-efficient, and sustainable. These solutions also need to combat the "black hole effect" upon entering the tunnel, reduce glare and flicker, and dim the light levels based on the time of day and outside weather conditions.