Embedded lamp

The utility model provides an embedded lamp which comprises a first shell and a second shell, a first opening is formed in the middle of the first shell, wall portions, located on at least two positions of the side edge of the first opening, of the first shell protrude upwards and form adjusting portions, adjusting teeth are arranged on the peripheral sides of the adjusting portions, and the adjusting portions are distributed on the two opposite sides of the first opening; the second shell is arranged on the upper side of the first shell, rotating shafts are arranged at the positions, corresponding to the adjusting parts, of the second shell, and the rotating shafts extend in the vertical direction; the gears are rotationally connected to the periphery of the rotating shaft in a one-to-one correspondence mode, and the gears are meshed with the adjusting teeth of the adjusting parts in a one-to-one correspondence mode; the racks are slidably arranged on the rotating shafts in a one-to-one correspondence manner