According to one implementation an apparatus for bacterially disinfecting a surface is provided. The apparatus includes a flexible body that contains therein at least one radially emitting optical fibers that is configured to emit bacterial disinfecting light. The radially emitting fibers having an axial and/or radial freedom of movement within a channel in which it is housed inside the flexible body such that when the flexible body changes shape the axial and/or radial freedom of movement reduces the amount of tensile stress applied along the length of the radially as compared to an amount of tensile stress that would otherwise be applied to the radially emitting fiber in an absence of the axial and/or radial freedom of movement of the radially emitting fiber inside the channel.
