1.High-precision spectral measurement with wavelength range 380 nm–780 nm, high-resolution CCD sensor and accurate test data. 2.Professional long-focal-length crossed asymmetric spectroscopic system, ensuring high accuracy and low stray light. 3.Comprehensive parameters test including illuminance, color temperature, wavelength, chromaticity coordinates and color rendering index. 4.Wide measurement range with auto zero calibration, supporting single test and continuous test modes. 5.Handheld design with stable performance, suitable for lighting test, optical research and environmental quality detection., Manufacturer: MERHOVO