The ornamental design for a serratedlightengine and circuit board, as shown and described.
FIG. 1 is a top plan view of a first embodiment of a serrated light engine and circuit board, showing our new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a left side perspective view thereof;
FIG. 4 is a right side perspective view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a front view thereof.
FIG. 7 is a top plan view of a second embodiment of a serrated light engine and circuit board, showing our new design;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a left side perspective view thereof; and,
FIG. 10 is a right side perspective view thereof.
The broken-line disclosure in the views is understood to represent portions of the article in which the claimed design is embodied, but which form no part of the claimed design.