Protective cover for light bars

The cover (10) has a first section (12) for covering a display unit i.e. hole-matrix display, and a target condensing zone provided outside a main field of view on the display unit. The zone is formed by second and third sections (14, 16), where material thickness of the second and third sections is smaller than that of the first section. A dripping profile (18) is formed in a transient area of the three sections, and forms a dripping edge (20). The second and third sections are extended parallel to each other at two opposite sides of the cover, where the cover is made of transparent plastic.