After these steps you should be ready to assemble everything.
these LED-strips have a glue-side, so make sure to glue them to the profile
so they can't move, if any wire touches the aluminium profile, you could get a shock
by touching one of them if they make contact with wires.
To be sure that these wires didn't move, i used a silicone paste to keep them in place.
After this proces you can plug in the lamp and normally it should work.