The selection of lamp cables here is 2x0.75mm² and 3x0.75mm² we get questions about what that means.
2x0.75mm² means that the lamp cord has 2 wires, one of which is blue and the other is brown, each with a thickness of 0.75mm², which is standard when it comes to cables for lighting fixtures. For the curious, the brown lead is so-called the phase line and the blue is the neutral line. Phase line is the input current and zero line is the return line. This is not something you need to keep in mind when using or mounting the lamp cord.
3x0.75mm² then has three wires and this is important: the wires have a blue, a brown and a yellow / green wire where the yellow / green is only for protective earth and may under no circumstances be used for anything other than just earth connection