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. Get the best of both worlds The Sea Dragon 3000F Auto light operates with only a single button, quickly adjusts between 3 power levels and an automatic with 10-step automatic brightness control, and has a wide 120-degree beam. The Sea Dragon Flash features manual and auto brightness adjustment, as well as large controls. Easily expand with Flex-Connect accessories Quickly and easily expand Sea Dragon lighting with Flex-Connect - add grips, Flex Arms, trays and other accessories with just a "click!" Flex-Connect allows you to transform your camera set from compact to full-featured in just seconds, providing a quick way to adjust to any dive environment. Features Sea Dragon 3000F Auto Light Features Powerful 3000 lumens featuring BridgeLux Gen 7 Vero COB LED Array Auto Bright mode adjusts from 300 to 3000 lumens to preserve your eye’s natural night vision and extends battery life Auto Flash Detect mode*. Light turns off for 1 second when detecting external flash. Flash detect can be turned on or off. Flash detect works in all 5 light modes One button control for easy operation. One button to power light on/off and select brightness Five Light modes: 3 white modes (Manually adjust to 100%, 50% or 25%), 1 white Auto (Automatically adjusts from 10% to 100%) and 1 Red light mode 60 minute burn time at full power Constant brightness - Regulated circuitry so light won’t dim with battery power. 80 Color Rendering Index (CRI) that mimics natural daylight. Easy to expand with Flex-Connect™ trays, grip and flex arms Quick-release button to detach light and aim in crevices and hard to reach areas 120 ° wide beam angle evenly illuminates the subject with no hot spots. 90° underwater Emergency mode emits blinking light or SOS signal to alert others of distress. Activated by holding down power button for 5 seconds from power off state Depth rated to 330 ft (100m) Corrosion-proof metal light head for heat dispersion and durability Removable 25Wh 3400 mAh Li-Ion battery w/ charger and international plug adapters included Waterproof battery compartment protects internal electronics even if light accidently floods Includes standard single tray, grip and compact travel case Mounting tray with universal ¼-20 screw fits all SeaLife and other brands Sea Dragon Universal Flash Features Universal - Works with SeaLife cameras ( excluding Micro HD/HD+, Micro 2. 0 ), Olympus, Canon, Sony, Nikon, and other brands of underwater cameras that have a built-in flash Auto Mode automatically adjusts flash brightness for optimal image exposure Variable power adjustment allows user to manually fine-tune flash brightness for desired effect and image exposure Easy to expand with Flex-Connect ™ trays, grip and Flex Arms Effective underwater distance range up to 8 feet (2. 5m) Depth rated to 200 feet/60 meters Quick-release button to detach flash and aim in crevices and hard to reach areas Universal mount fits all SeaLife cameras and other brands of underwater cameras with standard tripod mount (Ikelite tripod adapter available but sold seperately) Auto Learn Mode easily syncs pre-flash with any digital camera Effective underwater distance range up to 8 feet/2. 5 meters Approximately 150 flashes at full brightness with 4 AA batteries (not included) Waterproof battery compartment Includes universal optical cable plug (SL96307) which connects the Sea Dragon Flash optical cable to Olympus, Sea & Sea and other underwater housings using the standard 7mm optical flash port Coiled optical cable extends from 15”(38cm) to 30”(76cm), compatible when adding one or two Flex Arms What's in the box Sea Dragon 3000F Auto Light Head Sea Dragon Digital Underwater Flash head with Flash Diffuser Flex-Connect Dual Tray with standard 1/4-20 mounting screw Two Flex-Connect Grips Optical Cable and Universal Flash Link Adapter Optical Cable Plug (For Olympus, Sea&Sea and other housings using a 7mm optical cable flash port) Spare O-rings, O-ring lubricant, O-ring removal tool 7. 4V Lithium Ion battery for Sea Dragon Light, AC power adapter, charging tray, and international plug adapters Sea Dragon Duo Case.