The Sea Dragon Duo 3000 Flash underwater lighting set includes the Sea Dragon 3000F Auto Photo/Video Light, Sea Dragon Flash, Flex-Connect Dual Tray and Grips – providing versatility for shooting colorful photos or videos. The best still images are shot with a Flash, and the Sea Dragon strobe auto-learns your camera’s pre-flash instantly. The Duo 3000 Flash set also includes a Sea Dragon 3000F Auto, which offers Auto Flash Detect Mode – a feature that turns the 3000 lumen light off for one second while your flash is being fired and the camera is capturing a still image. Auto Flash Detect helps eliminate undesirable shadows, color shifts or backscatter. An additional feature of the 3000F Auto light is the Auto Bright Mode which automatically dims the light based on the proximity of the light and subject.