LED lamp 21 and individually adjustable micro switches on the rear of the floor to turn on separate groups of 3 LEDs. LED modules in low voltage (Class III) are spherical. The structure is composed of a flat bar 140mm width, height 2 mt and 5 mm thick. Base of rectangular shape. The result is a compact lamp that allows the largest orientation of the light beam while maintaining a lightweight structure. The lamp unit contains the power supply. Particularly suitable for illuminating historical or exhibition spaces such as churches, museums, galleries, show rooms and shops. Production only on request.