The invention relates to a surgical light (1) for illuminating an operating area, comprising a housing-like light body (4), which accommodates at least a first and a second light unit (2, 3), and comprising a first power supply line (5), which is electrically connected to the first light unit (2) in order to feed electric current from a first voltage source to at least one light source (6a, 6b) of the first light unit (2), wherein the second light unit (3) of the light body (4) has at least one further light source (7a, 7b) and is connected to a second power supply line (8), which is separate from the first power supply line (5), by means of which second power supply line a second voltage source can be electrically connected to the second light unit (3).