Custom-made light strip system for flush ceiling installation in plasterboard with shadow gap, high-quality aluminum profile for fastening in trimless installation frame, miter cuts for surfaces, wall-ceiling inside, corner outside/inside possible (cutting costs on request), trimless installation frame, light inserts and (required) accessories to be ordered separately, quick installation in installation frame via rotary latch, acrylic glass diffuser prismatically flush with profile guide and tool-free snap-in technology