I am not satisfied with this strobe. The uv light is quite weak and the white light is strong. When using a setup where the strobe flashes uv light alternating with white light this is a problem. In the menu and manual there is a setting for the maximum strength of both white and uv light. But in my case it is not working because even after changing the setting the strobe still flashes the same. I complained this defect, they sent a new piece. However, even the new piece works exactly the same.