Extended Arm Mounts from Vista Architectural Lighting. The EAM-D Double Extended Arm Mount features heavy duty extruded, die-cast, and CNC aluminum construction for added durability. Specifically designed to extend two (2) Vista up & accent luminaire off of the wall for a variety of lighting applications. Extended Arms can be ordered in 18", 24", and 36" standard lengths and the tee-arm extensions in 12" and 18" standard widths. Custom lengths are available.