We need to test LED boards, check the LEDs to see if they are lifted, crocket, misaligned, missing or any other issues. Then power the board up and see if all LEDs are lighting up.As bigger the test area as the better for us. So I can say 16x12.8”. but question is about the bigger boards which we have so many different ones, up to 60”. Can the machine do indexing to test bigger boards? i.e. first check 16” and then another 16” and so on till the whole board is tested.Again, keep in mind, that if not thousands, we have hundreds of different board, different size and different configurations. The important thing is that the machine should be quite easy to set it up for any board. If you look at a pick and place machine, easily you can set it up for any board as long as the board size is within the limitation of the machine.