Recent progress of COB technology and color quality metrics

The COB (Chip-on-Board) arrays are utilized comprehensively, especially in commercial lighting and indoor lighting. Here we would like to discuss the recent progress of COB technology and color quality metrics, including SC5 technology, lumen output, light efficacy, light emitting surface, center beam candlepower, COB performance in SMT LED, correlated color temperature, color consistency, EasyWhite technology, color rendering index, R9, special color points, color fidelity, color gamut, and TrueWhite technology.