The Resonance IV LED Wall Sconce from Roll & Hill has a rounded-square outline designed by Brooklyn-based artist Christopher Merchant. Tightly packed ridges arranged in two mirrored S-curve patterns run across the top and bottom halves of the ceramic form, giving the surface a continuous, almost rhythmic quality. Six light sources are set into the dark, richly glazed face, their output catching across every ridge and giving the piece a depth that shifts noticeably as the light plays across it.