TEMT6000 is a silicon NPN  phototransistor . The device is sensitive to the visible  spectrum, It is sensitive to visible light much like the human eye and has peak sensitivity at 570 nm.

 TEMT6000 Light Sensor will detect the brightness of its surroundings.

 TEMT6000 measures illuminance (measured in lux  ).

  Wide angle of half sensitivity ϕ = ± 60°

 the visible spectrum (360 to 970 nm) 

Wavelength of Peak Sensitivity   570 nm 

output is analogy