SpiralLighting BlogSpot
Lots of LED lamps are marked full spectrum and Ra≥95 high CRI, but they produce unsatisfactory lighting effects in hotels and retail stores. This article breaks down the defects of relying only on CRI, and teaches you to judge real light quality via SPD, R9, TM-30 and Duv.
Many LED lights advertise full spectrum and Ra≥95 high CRI, yet they fail to deliver ideal lighting effects for hotels, retail and portrait scenes. This article explains why CRI alone is not reliable, and introduces SPD, R9, TM-30 and other professional indicators to judge real light quality.
