Our lamps are constructed and assembled using a modular system, allowing combinations regarding capacity, function and quality of design.
The foundation of all Hartenberger underwater lamps is the lavishly built housing. The high degree of pressure proof integrity results from the precision designed and manufactured O ring surfaces (slip and compression seals), and the absence of any mechanical penetrations of the housing. The housing cover plate can be removed and refitted without the need of tools.

High quality O Rings with a hardness of 50° assure a reliable seal. Each unit is tested to a pressure of 10 bars, (147 psi), however the implosion pressure resistance of the housings is a depth of approx. 200 meters of water.
(Special orders available to 1000 meters). The housing components are turned on modern computer controlled lathes.
The plug in cell packs can be changed in seconds for simple and quick replacement when empty. If a cell pack is defective, this allows the user to replace a cell pack rather and avoids the need to return the lamp to a workshop for cell replacement.