Trapezio and TRI are strongly related fixtures. The Trapezio has two-lamps and contains thus much more lighting capacity. This was the solution for the traffic areas of the penitentiary facilities in Veenhuizen. The existing light points could be used. On the varnished galvanised steel underbody components are mounted which are covered by a reflector. The polycarbonate hood is fully enclosed by the bottom plate and endpanels, this creates a ultra-rugged impact-resistant box construction. The endpanels are secured with stainless steel bolts with so-called. snake-eye bits making them impossible to disassemble without the right tool. Bud wiring and additional circuits are among the possibilities of this product. Bottom plate, endpanels and bolt heads are often lacquered in color RAL 9006.