Speed Ring – Quartz / Daylite Octaplus – 16 1/8 in (410 mm) is a Chimera lighting accessory that provides the mounting interface between Quartz light heads and Daylite Octaplus softboxes. The outer ring diameter is 410 mm, compatible with Chimera Daylite Octaplus 16 1/8 in configurations. It enables secure attachment of diffusion frames and fabrics to the light head, supporting standard Chimera mounting methods used across Quartz and Daylite product families.