The invention relates to the technical field of lighting technologies of LED lamps, in particular to an LED ceiling lamp, a
diffuse reflection coating and a preparation method of the
diffuse reflection coating. The LED ceiling lamp comprises a base, a fixing disc inlaid inside the base, chips fixed to the surface of the fixing disc, a lampshade fixed to the bottom of the base 1, and an intelligent controller and a
ballast which are mounted between the lampshade and the fixing disc, wherein a plurality of air vents are formed in the outer side of the base 1. The LED ceiling lamp has the advantages that 1, according to the brightness and
color temperature-adjustable LED ceiling lamp, through utilizing a controller, a color adjusting unit is controlled to adjust the lighting color of an LED lighting set, and a brightness adjusting unit is controlled to adjust the brightness of the LED lighting set, so that the
color temperature of the integral lamp is adjusted, the
intelligent control of the ceiling lamp is achieved, and multiple lighting manners of arbitrary color constant lighting, gradual changing lighting, random color alternate changing lighting, and the like, are achieved.