First LM-80 obtained Tunable White COB, Cross & compound LED dies distribution and double phosphor coating, high uniformity of color-mixing, shadowless CCOB (Compound & Cross Chip on Board) technology. Cross-distribution of LED chips in a circular LES to perform a better color-mixing through optics reflectors or Lenses, anti polarized light and anti color cast;MacAdam Ellispe 3SDCM binning at 85℃Variable CCT-tunning from 2700K-6000K, dimming from 0%-100%CRI 80Ra / 95Ra (R9>90)