Semiconductor light emitting module comprising an exposed plate surface

A semiconductor light emitting module comprising:

• a plurality of metal plates each having flat upper surface and flat bottom surface, wherein each metal plate disposes a semiconductor light emitting element in contact with the flat upper surface of the metal plate;
• a single board electrically connected to each semiconductor light emitting element for supplying electric power to the each semiconductor light emitting element, wherein a portion of the flat upper surface of the each metal plate is attached in a longitudinal direction of the single board in an array form, and wherein the single board covers the portion of the flat upper surface around an outer edge of the semiconductor light emitting element and a first upper surface being the neighborhood of the semiconductor light emitting element for the each metal plate so that the first upper surface and a second upper surface being both ends of the each metal plate that protrude from the single board in a direction perpendicular to the longitudinal direction are exposed;
• wherein the first upper surface and the second upper surface are coplanar;
• a high reflection paint portion provided at a gap portion between a periphery portion of the first upper surface of the each metal plate and the single board.