opple light master pro light lux cri flicker meter led flashlight bluetooth ios android tester tool pgraphic lighting sensor

notice: Â please don't touch the white area which will make the measurement result inaccurate. 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. it is convenient for lighting designers or other professionals to measure the demand while improving
the dimension of light, transforming invisible light quality into visible light parameters energy saving, super long endurance for one year after full charge, eliminating charging trouble..syi