This External Yellow Color Filter from Bigblue fits the VTL3100P, VL3500P, VTL5500P, and VL7500P LED dive lights. It reduces the color temperature to create a warming effect, which can be useful for various types of shots and is a good way to make sure you don't scare off sea life with harsh light. The filter is easily attached and removed, allowing you to quickly adjust to different lighting conditions beneath the surface.