The Glow Speedring for Broncolor Pulso is an aluminum softbox collar and mounting ring designed to fit your Broncolor Pulso Non TTL Monolight. You have full control with 360 degrees of rotation, and the versatility to apply a square, rectangle, octa, or strip box from Glow to your 3200 watt Broncolor Pulso. In addition, this Speed Ring Adapter makes your Glow Softbox compatible with other Broncolor lighting units; the Siros, MobiLED, Unilite, & Litos. The subtle brilliance of Glow diffusion meets the powerful radiance of Broncolor.