Compatible with the Bee 50-C, Wasp 100-C, and Hornet 200-C LED lights, the Hive Lighting C-Series Umbrella Mount Photo Yoke has a Profoto-type speed ring to support a light, which is attached to a tilting swivel with a ratcheting handle and a 5/8" receiver for industry-standard light stands. A locking umbrella shaft channel is integrated into the swivel.