... control requirements of energy-saving lamps, fluorescent lamps, LED and other products manufacturers.Specifications:• Measure Pa rameters: CCT ... meter that can measure illumination.PHOTO-100: This pocket luminance meter has performance of high precision, low ... small volume, stable performance and convenience operation.PHOTO-100L: Pocket brightness meter, measuring range: 20cd/m2~2000kcd/m2; ...