The LS 1200d Pro Reflector Kit is designed to optimize the output of the Light Storm 1200d Pro, the brightest light in the Aputure and Light Storm lineup. To adapt the output and beam angle of the LS 1200d Pro to your shooting scenario, the LS 1200d Pro Reflector Kit includes three Bowens Mount Hyper Reflectors with varying beam angles, Narrow, Medium, and Wide.With its Narrow Hyper Reflector, the LS 1200d Pro can achieve an output of 83,100 lux at a distance of 3 meters, and an output of 22,400 lux with the Medium Hyper Reflector at the same distance.