in.ground ground-recessed luminaires are compact, robust luminaires for outdoor use. Round and square models with identical technology form the basis for flexible planning tasks. They can be used with different illuminants and reflector and lighting technology for both illumination and light staging and for graphical presentation to guide orientation in public spaces and at intersections and to mark out paths and entrances. The possible illuminants range from LEDs and low-voltage halogen incandescent lamps through to metal halide lamps.