CLEARANCE, LIMITED QUANTITIES AVAILABLE! The idea behind our Rusty lamp was to connect the natural aspect of a controlled surface rusting with modern energy saving technology in a very strong light fixture. All lamps of the Rusty range are made of cast FeCSi-steel and are extremely weather proof. In outdoor applications the special steel alloy forms a barrier layer of iron oxide (rust), which protects the material core from infiltration of dampness and oxidation essentially arresting the process. Individual deviations in form and surface are intended with the Rusty luminaire.