Based on this product's specifications, here are some alternatives and similar models
Barndoor kit for GlareOne PRO LED fixture — GlareOne GlareOne PRO Barndoor Kit
Summary description:
Barndoor kit designed for use with GlareOne PRO series LED fixtures. This accessory provides directional light control and beam shaping by attaching adjustable metal flaps to the fixture front. Intended for studio, stage, photography and event lighting where precise cutoff and spill control are required. Easy to mount and suitable for modifying light distribution without changing optics.