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. <EOS>