pls как перевести lamp versus line

[EgorNM]

Не могу перевести lamp versus line
в предложениях
The power of the lamp versus line is also supplied by TC2 after its pressure being stepped down into 24V

On the control faceplate there are still the function selection SA2( ), the travel selective switch SA3( ), the lamp versus line switch SA4

On the back of the faceplate there is the cutting angle indication set, the shinning lamp versus line EL1-EL5 on the back top of it

Речь идет о настройках машины для резания металла