The module has a tubular reflector including two apertures (6) and a reflector surface that is formed at an inner side of the tubular reflector. A set of LEDs is arranged inside the reflector at a region of a constriction (2) formed at the center of the reflector along a longitudinal direction. The reflector is expanded in the shape of a funnel from the constriction to the apertures such that 10 to 50 percentages of total light beams emitted by the LEDs is discharged as radiation beam through the apertures without prior reflection at the reflector.
