STERN is a professional down light with high lumen output, compact and  elegant design. Unique structure of interchangeable reflector, excellent heat  dissipation performance. Thanks for the new technology of dark light reflector, which makes it can deliver a very soft and glare-free lighting effect. IP65 rated version make it more stronger and wider use in an tough environment.Die-casting aluminium housing.Powder coating finish.Excellent anti-glare control.With both optical lens and high purity aluminium reflector can achieve a perfect lighting solution.No UV or IR,can protect commodities properly, to avoid the color fading from radiation.LED driver is connected externally. Easy for installation and maintenance.