The Large Daylight Senior is the largest, most durable softbox Chimera makes. It is designed for use with a Fresnel up to 24,000 Watts with a front diameter between 24 and 29 inches. It utilizes an extremely deep profile of 50 inches. The extra depth of the Daylight Senior (it’s about 30% deeper than the Quartz softboxes) allows the fresnel beam to spread out and cover the front face more evenly. This extra depth, combined with a fabric that is even more heat resistant, makes the box safe when used with a 24Klight. 54″x72″.