Zeta ZELEDM ZetaLED bulkhead luminaire with 1W LED lamp. It follows in the footsteps of the ever popular Zetalite fluorescent model and turns a combination of modern styling and careful engineering into a new LED bulkhead luminaire offering excellent value for money. It has an ultra low profile of 63mm and the combination of a stepped and curved profile diffuser makes Zeta LED blend unobtrusively into almost any environment.