Panel light device, comprising: a back plate, a light emitting assembly and a face frame provided with a light emitting opening, which are sequentially disposed; the face frame comprising: a frame body; and a rim section disposed at an inner side of the frame body, wherein one end of the rim section is connected with the frame body, and the other end is a free end; wherein the light emitting assembly is configured to abut against the rim section, and comprises a light source plate disposed at the inner side of the frame body, with a plurality of LED beads being disposed on the light source plate in a lateral way, characterized in that two color temperatures are provided by the plurality of LED beads, and the LED beads with the two color temperatures are alternately arranged at equal intervals, a middle portion of the rim section is provided with a rib, and the free end of the rim section is provided with a flange having a height equal to the height of the rib, and a distance from the LED beads to the free end of the rim section is A, and a distance between the centers of two adjacent LED beads of the same color temperature is P, and a ratio of A/P ≧ 1.2. a back plate, a light emitting assembly and a face frame provided with a light emitting opening, which are sequentially disposed; the face frame comprising: a frame body; and a rim section disposed at an inner side of the frame body, wherein one end of the rim section is connected with the frame body, and the other end is a free end; a frame body; and a rim section disposed at an inner side of the frame body, wherein one end of the rim section is connected with the frame body, and the other end is a free end; wherein the light emitting assembly is configured to abut against the rim section, and comprises a light source plate disposed at the inner side of the frame body, with a plurality of LED beads being disposed on the light source plate in a lateral way, characterized in that two color temperatures are provided by the plurality of LED beads, and the LED beads with the two color temperatures are alternately arranged at equal intervals, a middle portion of the rim section is provided with a rib, and the free end of the rim section is provided with a flange having a height equal to the height of the rib, and a distance from the LED beads to the free end of the rim section is A, and a distance between the centers of two adjacent LED beads of the same color temperature is P, and a ratio of A/P ≧ 1.2. a light source plate disposed at the inner side of the frame body, with a plurality of LED beads being disposed on the light source plate in a lateral way, characterized in that two color temperatures are provided by the plurality of LED beads, and the LED beads with the two color temperatures are alternately arranged at equal intervals, a middle portion of the rim section is provided with a rib, and the free end of the rim section is provided with a flange having a height equal to the height of the rib, and a distance from the LED beads to the free end of the rim section is A, and a distance between the centers of two adjacent LED beads of the same color temperature is P, and a ratio of A/P ≧ 1.2.