We have added a new accessory -the 4700 is a safety screen that covers the front of all of our lighting instruments with 6.5" reflectors. The 4700 is designed for use with our CL instruments that provide a continuous light for video or some still photography. This is a great safety measure if you are illuminating something in an environment where a flying object could strike the instrument's lamp. The screen lessens the impact of the shattering glass.