If P-kind are going to be positioned down below the light are going to be emitted through the area of P-sort but we won't be ready to see it. This is actually the reason that P-sort is positioned above. de Asistencia Asequible, ley aprobada en 2010 para reformar aspectos disfuncionales https://www.uk-exhibitionstands.co.uk/product/large-exhibition-stands-design-1/