SONNEMAN's Prisma™ indoor/outdoor LED light uses a stunning two-corner motif to create a sense of geometric intrigue and wonder. Two angled cuts give way to a built-in LED light source that casts up/down warm white light with a dimmed background glow, ideal for soft lighting of open spaces.
Dimensions, mm: 280 x 178 x 102

https://www.ylighting.com/prisma-indoor-outdoor-led-sconce-by-sonneman-lighting-SNNP202218.html