A lamp is provided including a first module and at least one second module, each having a plurality of LEDs distributed over a module surface. The modules are arranged on at least one cooling element for dissipation of lost heat. A reflector deflects light emitted by one of the modules into an exit opening of the lamp. An optical system located between at least some of the LEDs and the exit opening bundles the light of the LEDs into a defined structure on a target surface.