A multi-light apparatus (10) for primary use in dental or medicinal operatory workspaces and for interconnection with a modular operating chair (12), so as to form the headrest thereof, preferably includes first and second radiation sources (36,72) and a selection mechanism (70) for selecting a desired radiation source, a rigidly flexible light pipe (16) that may be alternatively coupled to each light source (36,72) and is configured to transmit selected radiation to a patient (14), a reflective surface (78) configured to direct the selected radiation to the pipe (16), a power supply (50), a cooling fan (56), and at least one potentiometer (66,68) for varying the voltage delivered to the sources (36,72) and fan (56).