Tolomeo classic LED table standing luminaire for adjustable direct task LED lighting * fully adjustable articulated arm structures in polished aluminum * joints and tension control knobs in polished die-cast aluminum * internal tension springs and external tension control cables in stainless steel * diffuser in aluminum with incorporated touch dimmer rotatable 360° * U.L. listed Choice of table mountings: * ø 9” (23 cm) base in weighted steel with stamped aluminum cover * table clamp in die-cast aluminum, maximum opening is 2 3/4” (7 cm) * table in-set pivot in die-cast aluminum, maximum table thickness is 3” (7.6 cm), hole is ø 3/4” (1.9 cm)