BIRNS: Doubly-Safe Chamber Light™
BIRNS: Doubly-Safe Chamber Light™
Diving + Life Support

BIRNS: Doubly-Safe Chamber Light™


Unique Group offers the BIRNS Doubly-Safe Chamber Light™ which 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.


Brilliant “white light” illumination

Small size (Ø76mm / 3″ OD), mountable almost anywhere

Superior thermal design

Dual helium release method

Lamp and lens options to make it perfect for most applications


Length: 76 mm (3.0 in.); Diameter of body: Ø76 mm (Ø3.0 in.); Diameter of base: Ø114 mm (Ø4.5 in.)

Mounting holes: 2 x Ø6.4 mm (Ø.25 in.) holes on Ø97 mm (Ø3.82 in.) bolt circle

Lamp Type: Incandescent Tungsten-halogen MR-16 (Parabolic Aluminized Reflector)

Time To Full Brightness: <1 second after application of power

Operating Position: Universal


The BIRNS Doubly-Safe Chamber Light™ provides “white light” illumination inside pressurised HeO2-atmosphere PVHO chambers

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