Starting now, our Ex brass lighting fixture is also available with explosion proof protection Ex d: This allows you as a user to choose your lamps flexibly according to your needs. Developing the Ex-525 we have profited from our longstanding expertise with explosion-proof products and our maritime heritage. Founded in Hamburg in 1919, as manufacturer of ship installation materials, we know the harsh climate on the coast and the challenges to man and material. Therefore, the Ex-525 is especially well adapted to the extreme conditions on sea like e.g. salt water and changing temperatures.