With the InvisiLight ILU Solution, the installer uses an innovative yet simple process to adhere a 0.9 mm diameter optical fiber into crevices along ceilings and walls or moldings and walls. In this way, the solution offers a safe, protected optical fiber link that blends seamlessly into the ILU, is virtually invisible to the eye and installed without disruption to the homeowner or décor. The InvisiLight MDU Solution helps meet the often difficult and expensive challenge of deploying fiber in hallways and between floors of existing buildings. This solution uses a fast, easy–to-install and practically invisible 12-fiber optical unit that can be surface mounted in hallways, on the exterior of each apartment or office and between floors to connect subscribers to ultra-high speed services.