I’ve seen some great displays let down by lighting glare. Lighting glare is when a bright light shining towards the viewer overpowers the light illuminating the object that they are viewing. At its most obvious a light shines from behind or beside an object into the viewer’s eyes. Less obvious is reflective glare, when the angle of incidence causes the viewer to see a reflection of the light fitting, on the surface of the object. This is typically a problem with objects behind glass.