Combining the best of both worlds, the 5006-BSO Up and Accent Fixture with shroud comes factory installed with Vista's new MR-16 LED lamp. Boasting the energy savings of LED technology and the flexibility and performance of MR-16 Halogen lamps, Vista's new MR-16 LED lamps come in your choice of 4.5W (equivalent to 20W halogen) or 5.5W (equivalent to 35W halogen) factory-installed. This low voltage Up and Accent fixture is constructed of thick-wall die-cast brass for strength and reliability.