Daniamant Submarine & Defense Lighting – Pressure-Rated & Tactical Systems

Technical Guide: Certified Submarine Escape Systems & Tactical Defense Lighting

For decades, Daniamant has engineered mission-critical safety equipment for naval submarines, defense contractors, and specialized naval forces worldwide. Each system is developed to withstand severe hydrostatic pressures, provide guaranteed power during total electrical failure, and comply with rigorous military environmental standards.

1. Submarine Escape & Chamber Lighting Systems

• Daniamant L158-1 – 24V Hydrostatic Pressure-Resistant Bulkhead Light (Part no. L158-1):
  An ultra-rugged bulkhead luminaire cast from corrosion-resistant marine bronze/aluminum alloy. Engineered specifically for submarine escape compartments, lock-out chambers, and rescue trunks. The L158-1 is pressure-tested to endure severe hydrostatic pressures up to 400 psi (approx. 27.5 bar / 275 metres depth) without mechanical deformation or seal failure. Powered by a 24 V DC supply, it provides dependable task lighting during escape hatch operations.
• Daniamant L37 – Water-Activated Submarine Escape Power System (Part no. L37 / NSN 6135-99-924-5402):
  A self-contained 24 V emergency lighting supply system deployed in submarine escape towers and compartments. Utilizing a heavy-duty polythene container housing silver chloride and magnesium cell plates, the unit is activated in seconds via a single-action tear-out plug. When seawater floods the escape chamber, the battery activates automatically to power compartment luminaires for a minimum of 8 hours, continuing to illuminate even after the chamber is drained. Rated to 400 psi operating pressure.
• Daniamant L30A – Submarine Escape Immersion Suit Light (Part no. L30A):
  Engineered for integration with Submarine Escape Immersion Equipment (SEIE suits, such as those manufactured by Beaufort/Survitec). Designed to survive high compression inside escape trunks, the light activates automatically upon reaching the surface, guiding search-and-rescue assets to survivors in the water.

2. Tactical Survivor Locator Lights for Aviation & Special Operations

• Daniamant L8S Aquacel – Saltwater-Activated Light (Part no. 55-A635 / NSN 6135-99-517-2332):
  An ultra-lightweight (34 grams) survivor locator light featuring silver chloride and magnesium cell chemistry. Sealed against environmental ingress by two removable plugs, it activates instantly upon saltwater immersion. Delivering 8+ hours of continuous steady illumination (1 cd lateral, 3 cd vertical), the L8S has zero magnetic signature, a 5-year shelf life, and is completely free from lithium transport restrictions. Widely specified for naval aircrews and tactical diving suits.
• Daniamant LJ1 – Sealed Lithium Unit with External Test Facility (Part no. LJ1 / NSN 4220-99-791-2682):
  A rugged, manually switched lithium emergency light with a 5-year storage lifespan. The LJ1 incorporates a non-destructive testing facility, allowing safety inspectors to verify battery and circuit continuity during routine inspections without violating the hermetic factory seal.

Comparison Matrix: Daniamant Submarine & Defense Equipment