The ComEx lamp module signals command statuses by illuminating or extinguishing a light signal. It is suitable for use in almost all potentially explosive areas in which the functional status of machinery needs to be visibly displayed The lamp modules are executed according to the requirements of type of protection “e increased safety” and “d flameproof enclosure”. The lamp module can be combined with various lamp module actuators. A junction box is provided for the safe and convenient installation of the module in a control panel. Conductors are connected using terminals with increased safety on the back of the module. The simple installation of the lamp module actuators without tools guarantees the high IP protection type.