LS335 is a split spectral illuminance meter. The host adopts a 3.5-inch color large touch screen design. The instrument is simple and convenient to operate. The appearance of the product adopts a circle from above to below, which conveys a harmonious and balanced aesthetic feeling and gives the product unique visual identification. The contour of the arc line increases the affinity and roundness of the product, and can also improve the user experience. The equipment is widely used in lighting, outdoor lighting, greenhouse lighting, stage lighting and other occasions of illumination, ultraviolet index, correlated color temperature, flicker frequency, fluctuation depth, color rendering index, color tolerance, temperature, humidity, blue light hazard ratio measurement, and display the measured spectral graph, through the spectral graph can identify the type of lamps and lanterns and blue light hazard.