Diving & Life Support

BIRNS Doubly-Safe Chamber Light™

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The BIRNS Doubly-Safe Chamber Light™, BIRNS Model 4121, is the world's best and most versatile PVHO lighting fixture. It meets or exceeds applicable Det Norske Veritas (DNV), Lloyd's, and UL requirements. It is versatile, with choice of lamp and lens. Superior thermal design permits the use of higher-output lamps, and BIRNS' exclusive "doubly safe" dual helium release method makes the entire front of the light its own helium release valve.
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Lighting Systems
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