New St. Pete searchlights to ease underwater study, rescue and repair

Divers are testing in the Baltic?s Gulf of Finland new underwater lighting fittings developed by Svetlana-Optoelectronica, a leading LED maker from St. Petersburg.

Divers from Russia?s National Underwater Research Center are testing in the Baltic?s Gulf of Finland, in the Leningrad region, new underwater lighting fittings developed by Svetlana-Optoelectronica, a leading St. Petersburg-based LED maker, portal Nanotechnologies and Nanomaterials reports. The prototypes of underwater searchlights reportedly belong to what experts refer to as the new ?extramobile? class of lighting equipment. The divers use the searchlights to look for and examine sunken ships and underwater wreckage scenes. The source claims there are ?no analogs of these lighting systems in international practice.? The LED-based lamps are said to allow operations as deep as 100 meters. Each searchlight weighs just a reported 400 grams and is relatively very small ? a competitive advantage that is believed to facilitate a diver?s work in hard-to-reach spots. For comparison, searchlights that divers widely use today weigh anything between 15 and 20 kilograms. By light flux, the St. Petersburg soffit can be compared to a 500+W halogen lamp, the source said...