VGA Line Generator Function: game video produces the line effect,classic,nostalgia,Perfect recall of CRT.15KHZ video display effect,Re-experience game classic ,Feel again the of the line. Colour:As shown :PCB Line Generator Function Switch Description: A:ON/OFF--- The switch of the line effect. B:R G B--- Red Green Blue debugging(Mainly through three potentiometer debugging effect). C:WIDTH---Width switch(Dual or Singular lines). D:VSYNC--- resolution adapter switch(Change the resolution requirement). E:EVEN/ODD--- line odd or even number switch . Description of vertical signals: 1.If the line switch is ON,The line has no effect( darker),This is vertical signal is out of sync. 2.If you need line effect,Toggle (VSYNC) to switch sync, resulting in effect. 3.If you 't need the line effect,switch is set to OFF, restoration to normal VGA state.(Darken will brightness). Package Contents: 1 x scanline generator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.