Linshang Illuminance Meter is a versatile instrument designed with a spectral sensor. It is used for measuring illuminance, UV index, flicker frequency, standard deviation of color matching (SDCM), color rendering index (CRI), correlated color temperature (CCT), blue light hazard ratio, temperature, and humidity in various scenarios such as lamps and lanterns lighting, outdoor lighting, greenhouse lighting, and stage lighting. The instrument also can display the spectral curve, which helps identify the type of lighting fixture.