Whether you’re shooting with the SeaLife DC2000 (see SKU: SLF740) or another camera with a built-in flash, this Duo Light & Flash set is the perfect lighting system. The set combines the Sea Dragon 3000 Auto for shooting video, and when shooting stills, it senses your flash and shuts off momentarily to give you a brilliant and shadow-free image. The Sea Dragon 3000 Auto delivers 3000 lumens over 120° smooth, even beam angle w/o hot spot on land & 90° U/W. Two red LEDs emit an 88° wide stealth mode” beam on land 66° U/W that won’t scare away nighttime sea creatures & preserves your eye’s natural night vision. Powered by a rechargeable 7.4V, 3400 mAh, 25Wh lithium-ion battery, the light burns for a 1-hour at 100% power w/its COB LED array (BridgeLux Gen 7 Vero LED Array – BXRE-50E4001-C-74). Constant brightness regulated circuitry, so light won’t dim w/battery power. The Sea Dragon 3000 Auto’s Auto Flash Detect Mode turns the light off for 1-sec. when an external flash is detected. This assures a well-lit photo & prevents shadows in images. Select the Auto Bright Mode & the 3000 light’s photocell light sensor will automatically regulate brightness based on proximity to the object in 10-step brightness levels. The Sea Dragon 3000F is the most powerful photo-video light in its size/weight class. The Sea Dragon 3000F emits a warm 5000°K color temperature & 80 CRI (color rendering index) adding vibrant colors & brightness to U/W pictures & videos. Emergency mode emits blinking light or SOS signal to alert others of distress. The Sea Dragon 3000 Auto’s Auto Flash Detect Mode turns the light off for 1-sec. when an external flash is detected. This assures a well-lit photo & prevents shadows in images. Auto Flash Detect Mode can also be turned off. The Sea Dragon 3000F ( F” stands for Flood beam) brightness can be adjusted manually or automatically w/its built-in photocell light sensor. The Auto Bright mode automatically adjusts from 300 to 3000 lumens based on proximity to the subject, helping to preserve your eye’s natural night vision 7 extending battery life. The light can also be manually adjusted to 100%, 50% or 25% brightness. Flash detect works in all 5 light modes. 1-button control for easy operation. 1-button to power light on/off & select brightness. 5-Light modes: 3 white modes, 1 white Auto (Automatically adjusts from 10% to 100%) & 1 Red light mode. Brightness control/light modes: 100% white, 50% white, 25% white, auto white, red, repeat cycle. 2-integrated 180-lumen red LED’s cast an 88° beam. At night or in caves or shadows, the 2x Cree XP-E red LED’s allow you to see gauges & surroundings, at the same. The red LED’s are powerful enough to assist the camera’s auto focus & will turn off for 1 sec. when a Strobe/Flash is fired. Light is depth rated to 330′ (100m) & has a corrosion-proof metal light head for heat dispersion & durability. Removable battery w/charger & international plug adapters included. Recharge time is 170-min. w/burn times of 60-min. at full power, 120-min. at 1/2 power or auto and 240-min. at 1/4 power. Waterproof battery compartment even if the O-ring seal fails, the battery compartment is isolated, so water cannot reach the internal electronics. The light head is made from anodized aluminum w/fiber-reinforced polycarbonate body. LED has a life expectancy of 35,000 hours & the O-ring seals for battery compartment are dual silicone rings. Light head only measures 5.1″ x 2.2″ x 4.1″ (13cm x 5.6cm x 10.4cm). The light head weighs 14.4 oz. (408g) w/battery & is negatively buoyant U/W. Included w/Sea Dragon 3000F: 25Wh rechargeable battery, AC power adapter, charging tray, international plug adapters, spare O-rings & lubricant, O-ring removal tool & owner’s manual.