The road tunnel Blonden in Liege, Belgium, is completed and open to public. The tunnel is fitted with BB LEDlightpipe EVO fixtures in the central zone and BB LEDlightpipe HLO fixtures at the entrance zone.

The HLO is a high lumen output fixtures specially designed for use at the entrance zone of tunnels. By day a high light level is needed to make the transition from outside daylight to the inside of the tunnel more safe and comfortable.

The project is a coorperation of BB-Lightconcepts with Techno Specials.