Recessed lighting fixture and method of installing LED lamps therein

A recessed lighting fixture comprising a housing (1), wherein

• an edge at an open end of the housing (1) extends horizontally and outwardly and then bends perpendicularly and downwardly to form a first chamber (2) having a rectangular cross section,
• a bottom of the perpendicular edge extends horizontally and outwardly and then bends perpendicularly and upwardly to form a tray (21) having a rectangular cross section,
• a mounting element (3) is fixed to a bottom of the first chamber (2),
• the mounting element (3) has a magnetic body (5) for attracting and positioning the LED lamp (4);
• wherein the mounting element (3) is consisted of:
• an U-shaped body (32);
• a vertical wall (33), the vertical wall (33) running parallel with a side wall (321) of the U-shaped body (32) and being connected with the side wall (321) through a horizontal wall (36);
• and
• a cantilever (34), the cantilever (34) being formed at a bottom end of the vertical wall (33) and consisted of an outwardly-extending portion and an inwardly-extending potion, wherein the outwardly-extending portion of the cantilever (34) covers a portion of a bottom surface of the tray (21), the inwardly-extending potion of the cantilever (34) runs parallel with a bottom wall of the U-shaped body (32) and has a plurality of upwardly-and-perpendicularly positioned gripper jaws (341);
• a first mounting room (31) for receiving an LED lamp (4) is formed between the bottom wall of the U-shaped body (32) and the gripper jaws (341);
• and
• a second mounting room (35) for receiving an aluminum substrate (8) having LED bulbs (81) thereon is a space defined among the vertical wall (33), the horizontal wall (36) and the inwardly-extending potion of the cantilever (34).