Usefulness of Light Master :OPPLE science lab photometer Light Meter transforming invisible light quality into visible light parameters, and popularizing the recognition of light.Professional Testing Equipment: Light meter can measure the light Illuminance,Color temperature(CCT), CRI, CS, EML, R1- R14, DUV and Flicker with highly accurate results. (Kind Tips: Please don't touch the white area which will make the measurement result inaccurate.)Energy Saving: Exclusive design light meter with super long endurance for one year after full charge, reduce the trouble of frequent charging and it can also be charged with Type-C.Easy to Use: Light Master is a simple operation, stylish and user-friendly, compact and portable,connected to the mobile APP can be measured illumination, chroma and other light parameters. (Compatible with iOS and Android)OPPLE Warm Tips: Light Master 4 only supports white LED light measurement. Not support monochromatic light or others, it will read wrong data. We are preparing to launch an OTA updates of app in the future to support more light measurements. Please feel free to contact us if you have any questions about the lux meter light meter we promise to reply within 24 hours. Product Description Track Page Views WithAuctiva's Counter