By combining a Silhouette shading and a room-darkening roller shade in a single headrail, you have three choices of light control: translucent, light dimming and room darkening. The back roller shade can be raised completely into the headrail to be hidden from view. It can be independently positioned in the window to any height with any of these operating systems: PowerView^®, LiteRise^® or EasyRise™.