... needed.2,When wate flows down, theLED will light instantly and automatiocally.3,Brightness is such ... other lighting fixtures needed .4,LED color will change gradually and automatically.5,The change of ... temperature is between 32-42, blue color will show automatically.C:when water temperature is between42 ... is above 46,red color will flash immediately.6,theis item will change its color by detecting water ...