Abstract: A linear LED display case light provides an adjustable swath of light. The swath of light emanates from a linear LED array residing in a generally round or polygonal cross-section housing. The housing has two polarity sensitive ends and is slidably coupled by sliding drums to two electrically conducting vertical rods located at each end of the housing, by adjustable couplings. The drums include locks for holding a vertical position on the rods. Machine screws having a smooth cylindrical belt under screw heads, pass through springed contacts, providing a horizontal axis of rotation for the housing to adjust the swath of light forward and rearward. The springed contacts electrically connect the vertical rods to the linear LED array. The vertical rods are secured to a solid surface and are electrically connectable to a power source.