Installation of ceiling lights and ventilation equipment may seem quite simple, however, this work needs to be approached with high responsibility. 

The attic is usually a heavily dusty area and the presence of thermal insulation materials. Therefore, any source of sparks can cause smoke and further ignition. Any wire connections must be made in junction boxes, and it is very important to use the appropriate bushings for the input and output of the wire from JB. 

Such work should be entrusted to technicians who perform their work exclusively in accordance with NEC.