Abstract: A downlight apparatus is designed to be installed in a cavity of a ceiling. The downlight apparatus includes a base part, a major part and a connector. The base part has a shape to be fixed in the cavity of the ceiling. The base part has a base housing for defining a through hole and a light window. The major part includes a major housing, a light source and a driver circuit. The connector connects the major housing and the base housing. The connector provides multiple candidate positions for a user to configure to change a relative position of the base part and the major part so as to change an output light defined determined by the light window and the light source.

Abstract: A light apparatus for being installed in an accommodating space of the wall includes following components. A light source circuit generates light for lighting when being energized. A main shell is set with an exposed portion and an embedded portion, at least a portion of the exposed portion is located out of the wall, and the embedded portion is located in the accommodating space. A cup body is set with a bottom part and a side surrounded part, the side surrounded part is connected to the embedded portion of the main shell, the light source circuit is located on the bottom part. A driving circuit box for placing the driving circuit, wherein the driving circuit generates current for driving the light source circuit after power supply, and at least a connecting structure is used to sequentially fix the cup body, the main shell and the driving circuit box together.