VL110 Magnetic RGB Tube Light , 24CMI needed a picture demonstrating shutter drag and freezing the motion with a flash. I used the Ulanzi as a light staff painting a light motion by night with Melbourne Skyline in the background. Worked very well! I am quite happy with their performance. The one thing which could be improved - the buttons are completely flush and very hard to work, especially in the dark. If they were made more tactile, either a bigger bevel around the button, or have them rise up 1/2mm it would have gotten 5 stars. So slight inconvenience, but overall worked better than expected!