The Radius is a compact luminaire for spot and local lighting. It is mounted on a 1-phase (1-P) or 3-phase (3-P) track installed on the ceiling. A track luminaire is a great choice for dry indoor spaces when you want to be able to reposition the light without an electrician or adjust the light easily both horizontally and vertically. Includes a glare filter that can be fitted at the front. We recommend using a PAR16 GU10 bulb with the luminaire. Choose a narrow or wide beam. The track and bulb are sold separately.