Lighting Products and Fixtures Design Umbu Ajustable Desk Lamp by Atelier Bam Umbu is a brazilian desk lamp, an adjustable direct lighting. The movement is continuous and soft. It have a triple articulation: the stem turn to both sides and adjusts the degree of inclination. The reflector has a diverse set of movements. The design value natural materials and handcraft. It uses brass, metal, Brazilian solid wood and granite stone. The experience is complet, touching the solid wood reflector is smooth.