Founded in 1954, BIRNS, Inc. of Oxnard, CA is a leading manufacturer of high-performance lighting and connector systems for deep-ocean and nuclear use. In addition to the famous Snooper, Kelvin, Corona and Blackbirn, BIRNS manufactures over 40 other types of lighting products, and six different types of lighting products, and six different connector ranges. Connectors include Aquamate wet-mateables and Millennium high-density deep-submergence styles.

- Superior thermal design
- Case ground (earth)
- 28 V lamps

The BIRNS MODEL 4132 General-Area Chamber Light provides general-area illumination inside pressurized chambers. Superior thermal design permits use of higher-output lamps, providing more illumination in the chamber. It comes complete with a 28 V lamp (power ratings = 28W).