The BlueRay Sport Underwater Video Light with Batteries from Fantasea Line has a depth rating of 330'. It outputs a maximum of 700 lumens at a beam angle of 75°. Its 6000K color temperature, which is close to that of daylight, helps color-correct images to eliminate the need for color correction filters. Adjustable power output gives you control over the intensity of the beam in various situations. The light will burn for up to 160 min. at full power or 400 min. at 40%. The head is constructed from aluminum and the body from polycarbonate, making the BlueRay a durable light. At 1.5 x 5.1" and 4.02 oz, it is compact and lightweight for easy transport, handling and use in compact underwater video systems. The light is powered by the two included CR123 batteries, or by a single optional 18650 lithium-ion battery. The included hand lanyard helps ensure you don't lose the light. Using the optional BlueRay YS Mount A, you can mount the BlueRay Sport light onto a Fantasea Flex Arm.