Description BH1750FVI is a Digital Light sensor module for an optical intensity sensor IC digital two wire serial bus interface Use of the light intensity data collection module can adjust the LCD brightness of the keyboard backlight Module resolution can detect a wide range of light intensity Parameters 1 the outer diameter of 26mm the large diameter edge 28 5mm high 26MM plus light beads 2 the working voltage DC5V3 Communication Interface I2C4 the input light range 1 65535lx5 spectral sensitivity characteristics Peak Sensitivity Wavelength Typ 560nm6 the light source dependence weak incandescent fluorescent halogen white LED fluorescent are okPackage included 1 x Light Sensor Module