doedoe的第二发明中嵌入的是，在与照明单元，根据埋入光装置的照明单元的组合的天花板，由第一联接器和所述高的第二高度比在该照明单元的第一高度相结合的第一高度结合 以及用于加强第二接合部分的加强部分，该第二接合部分的高度高于第一接合部分的高度，可以改变照明部分的高度以容易地改变光的亮度， 本发明提供一种掩埋式照明装置，其中照明部件和照明部件之间的连接牢固。

The second invention of doedoe embedded in that, the ceiling in combination with the lighting unit, the lighting unit according to the buried light apparatus, combined by the first coupler and the high second height greater than the first height for combining the illumination from the first height housing portion, and the first engagement portion than characterized in that it comprises a reinforcing of the reinforcing high the second engagement portion in height, it is possible to change the illumination of height, yet can easily change the brightness of the light housing including an engagement portion the coupling between the part and the lighting unit provides a solid buried type lighting device.