The luminous device, which is provided in particular for use in the medical sector, has a luminous unit (1) which comprises at least one light-emitting diode (11) and which is connected or can be connected to a power supply device (3) via electrical lines (21, 22). According to the invention, a connecting element (2) is provided, which has a strip-type, flexible and insulating base substrate (21) coated with metal on one side or on both sides, into which are incorporated the electrical lines (22; 23), which are led to connections (25) of the luminous unit (1) at one end of the connecting element (2) and to connections (26) of the power supply device (3) at the other end of the connecting element (2), wherein the metal layers (22, 23, 24) provided on one or both sides of the base substrate (21) are dimensioned in such a way that they hold the base substrate (21) in a chosen form.