Soho P3 luminaire with E27 socket for 3-circuit track Equipped with an E27 socket, the P3 luminaire for a 3-circuit track is suitable for use with a wide variety of light sources. Glow lamps, head mirror lamps or also illuminants with particularly decorative and unusual surfaces and forms become in this lamp the eyecatcher in the rail system. The luminaire is made of aluminium and is equipped with a 3-phase universal adapter so that it can be integrated into any 3-phase track system.