Check the listing for details. DiveVolk Ambient Blue Light Filter for SL50 & SL120 Video Light. Color: Blue, Condition: New. Listed at 109.00 USD. Enhance your lighting setup with an underwater blue light filter designed to cool the color temperature of your video light and reduce overly red areas where illumination reaches your subject. Used in combination with a red filter, this video light color filter supports more natural looking images by converting white light output to a blue tone for improved balance. Designed specifically as an underwater video light accessory compatible with SL50 and SL120 models, this ambient blue filter provides a simple way to refine underwater lighting performance and adapt your setup for consistent visual results.