Reduce the beam angle of your AOI System 01 or 02 Underwater LED Video Light from 100° to 30° with this Searchlight Adapter. This optical acrylic accessory lens makes the beam more concentrated to enable the System 01 or 02 to be used as a searchlight capable of illuminating people or objects at a greater distance. The adapter body is made of silicone rubber and can be mounted or removed easily underwater. Additionally, a loss-prevention screw connects to the light's threaded mount for extra security. The adapter cannot be used with a filter or another lens.