... 0.233, monochromatic fluorescent lamp efficiency 73.21m/W.2 Green PowderMgAl11O19:Ce3+,Tb3+,chromaticity coordinate x=0 ... oxide red powder, aluminate green powder and blue powder; Phosphate system composed of yttrium oxide red powder, phosphate green powder and blue powder; Borate ... , such as: high brightness, efficiency 90—100 lm/W, wide rangeof color temperature, higher color rendering index Ra ...