Luminaire for ceiling or three-phase electric track installation. For LED lamps, very low voltage halogen lamps, direct mains supply and discharge lamps. Self-extinguishing ceramic or engineering plastic lamp holders, with single-pole, transparent electric wires with double Teflon insulation. Aluminum body, placed above the lamp holder, black thermoplastic and 4mm tempered glass screen-support ring. Die-cast aluminum alloy body, cover and adjustable lamp support, with hand-polished finish and protected with transparent liquid paint, or powder-coated white or matt black. Thermoplastic three-phase adapter. Finishes: white (09), polished aluminium (50), black (30).