The LBTEK High-Sensitivity Fiber Optic Spectrometer adopts Hamamatsu thermoelectrically cooled detectors, featuring low noise, high signal-to-noise ratio, high resolution, and high quantum conversion efficiency. It is particularly suitable for weak light detection scenarios requiring long exposure times. LBTEK provides the LBSpectra control software specifically developed for spectrometers, allowing users to perform routine operations on spectral curves through software control. When paired with various spectral application kits provided by LBTEK, it enables the detection of parameters such as reflectance and transmittance. Additionally, with the dedicated chromaticity dynamic library, it can easily and quickly achieve the measurement and application of CIE standard colorimetric parameters.