Aputure Fresnel-lins With Bowens-S mount for Light Storm COB 120-series and c300d For COB c120d / c300d Series Light Storm Lights Compatible with Bowen-S Mount Lights Beam Angle Adjusts from 12-42° Use for Spot or Flood Intensity: 14000-67000 lux at 0.5M Use with Optional Accessories Fiberglass Shell for Strength Provides Effective Heat Dissipation