A lighted sign having a front translucent surface surrounded by a skirt defining an opaque contour. A digital control circuit including a switching controller arranged to output control pulses to the switching circuit and a rectifyingsmoothing circuit connected to secondary windings of the transformer are disposed at a secondary side of the transformer. The automatic control initiation structure is particularly useful with an automatic combine throughput control and eliminates unstable operation resulting from delayed control initiation. Each light-emitting portion includes a light-emitting layer made of an organic compound exhibiting electroluminescence. The collaboration may then be recorded and stored remotely via a cloud-based server.