Unfortunately, the electrician has scolded terribly over the connection and mounting this fixture. As for the connection of the protective conductor is not a regular terminal point exists, in his opinion, likely as a lamp not be sold or connected to the mains. He has the yellow-green protective conductor of the supply line connected to the internal screw makeshift place of the mounting plate. Here they screw him has been dropped twice from the ceiling. Exactly what happened to him then, when he wanted to use the light to the mounted on the ceiling mounting plate into the slots. Again, had to be completely unscrewed one of the two side screws. The re-insertion of this screw turns out this is very difficult. The electrician said in conclusion, from the point of connection and installation, he would not recommend this light for sale.