Most powerful underwater lighting

Last updated: February 4, 2020 at 4:20 am

The most powerful lights ever used in the deep ocean were mounted on the Russian MIR 1 and MIR 2 submersibles to film The Stephen Low Company’s IMAX film Titanica in 1991. The twin lighting systems composed of HMI and quartz iodide lights powered from the submersibles’ batteries, generated the equivalent of 150,000 watts of incandescent light.

The 6,000 m (20,000 ft) depth capable Medusa, built by Phoenix International, Inc., is a Remotely Operated Vehicle (ROV) that carries 10 high-powered, independently movable and controllable, HMI lights. Medusa can produce a total of 12,000 watts of illumination. It was suspended over the wreck of the RMS Titanic for the making of James Cameron’s Ghosts of the Abyss in 2001.

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