Led general lighting bulb

The utility model relates to an LED universal illuminating bulb, which comprises a lamp adapter (1), a lamp cup (2), a lamp shade (3), and LED lamp (4) and an aluminum substrate (5), and also comprises a lamp cup connection plate (6), wherein, the lamp cup connection plate (6) is fixedly connected with the aluminum substrate (5); the lamp cup connection plate (6) is connected with the lamp cup (2) in threading way; the lamp adapter (1) is screwed up with the lamp cup (2); one surface of the lamp cup connection plate (6) is provided with a lug boss (7); the lamp cup connection plate (6) is screwed up with the lamp cup (2), namely, the lamp cup connection plate (6) is connected with the inner thread on the inner wall of the lamp cup (2) through the outer thread of the lug boss (7); and the lamp adapter (1) is screwed up with the lamp cup (2), namely, the outer thread on the outer wall of the lamp adapter (1) is connected with the inner thread on the inner wall of the lamp cup (2). The LED universal illuminating bulb has the advantages that the lamp adapter is connected with the lamp cup in a threading way and the lamp cup is connected with the lamp shade in a threading way, so that the internal control circuit can be conveniently disassembled and replaced, and the heat radiation is better than the original welding or splicing.