³Ô¹Ïtv / ENGINEERING EXPLANATIONWhite PCB Solder Mask for LED Products / geometry and scopeBand A | B | CSame wavelengthsSame geometrySame weightsOptical comparison isseparate from the thermalpath.Three bands are a screen, not a complete optical model.Conceptual illustration. Not to scale; examples are not process settings or acceptance limits.