Lighting unit on wall-to-wall cable. Structure in chrome-plated steel with rods and cap nuts, two-ways chrome-plated lampholder, complete with long duration halogen bulb with protection provided by two half-cylinders in transparent Pyrex glass with spring holded clamps, wired on special support-conductor cable for installation with input at the two cable ends. Fit for installation of a maximum of two bulbs 110V on each string (only for 220V mains).