Sea Dragon Fluoro-Dual Beam The Sea Dragon Fluoro-Dual Beam emits a powerful blue light and has an integrated dichroic filter, creating the optimal light wavelength to excite underwater life. Switchable beams quickly adjust with the push of a button from blue fluoro 65 deg. flood to white 800 lumen 15 deg. spot. The kit includes yellow barrier filters (mask and lens) to filter out the residual presence of blue color emitted by the light. A rechargeable Lithium Ion 7.4V, 3400 mAh, 25Wh battery delivers power for a full 60 minutes at 100% fluoro emission. With its single button operation, the light can quickly adjust between four brightness modes: 100% and 50% fluoro flood, 100% and 50% white spot. Depth rated down to 330ft/100m. The Sea Dragon Fluoro-Dual Beam?s Royal blue LED's emit blue light in the range of 450-460nm that is in the approximate wavelength to "excite" the fish, plants or organisms into making a light filled energy response. Two universal, barrier filters are included to improve your experience in underwater fluorescent viewing and imaging. The mask filter fits over the dive mask to filter out the residual presence of blue light emitted by the light. The second filter attaches to any underwater camera with a lens diameter up to 47mm. Flex-Connect allows you to quickly and easily transform your camera set from compact to full-featured in just seconds by adding grips, Flex Arms, trays and more with just a "click!" What's included: Sea Dragon Fluoro-Dual Beam Photo/Video Light head Flex-Connect Single Tray with standard ¼-20 mounting screw, grip, ball joint adapter Protective cover for barrier filters Universal yellow barrier camera and mask filter 25Wh Lithium Ion rechargeable battery AC Power Adapter, charging tray, and international plug adapters Spare O-rings, O-ring lubricant, O-ring removal tool Sea Dragon Case