A high-bay luminaire has to be robust and versatile if it is to cope with all the stresses of everyday situations. This luminaire is really tough, available in IP54 or IP65, dirt and water have very little effect on it. Rigidity is provided by a laser-welded sheet steel housing that does not need re-opening for installation. The lighting technology with Individual.Lens.Optic guarantees versatility with different lumen packages.