Lighting fixtures for lamps without ballast

These equipment are suitable to be installed in places in which, during the
normal activities, explosive atmosphere caused by gases, vapours, mists or
caused by mixture of air and combustible dust are likely to occur.
They type of protection flameproof “d”.
They are normally used for uniform illumination of rooms and structures. The
main features of these lighting fixtures are the mechanical sturdiness and
ease of periodic maintenance, limited to periodic cleaning of the glass globe.